Here is my analysis for the spring 1907 moves. This was a very consequential turn, and there are some things that need additional perspective from other observers.
GERMANY: D+
This is the move in which I am most interested, and I'd appreciate further analysis. Am I completely off base, or is this a poor set of moves? It seems to me that the handling of things in the east has been poorly managed, and Germany has been harmed most of all.
My guess here is that all this is worked out between Russia, Germany, and Italy. Russia gives up St P in exchange for Sev and a place in the draw. Germany moves to Stp without support in case it doesn't work (but why wouldn't it work?). Russia getting an army build in St P is much more useful for Germany than Germany getting St P. The real result is transferring a center from Turkey to Russia to Germany to France. Now Germany cannot hold Norway. Maybe Germany expect to lose Denmark anyway, and wanted a retreat open? Whatever the logic, now Germany cannot keep Norway and Kiel this turn, and Sweden and Denmark are likely gone next year. France maybe can't hold Kiel? Is that the logic?
My only assumption is that Germany demanded this because Germany does not trust Russia and Italy, and Germany is more afraid of Russia's continued hostility than of France's. (There's also the possibility that things between Russia/Germany/Italy are not quite what they seem, but we can consider that later).
Long term, Germany is very luck to still be in Munich.
FRANCE: C+
Things did not go well in the south this year, and things went quite good in the north. France will definitely take Holland and another Germany center or two. Potentially three builds! Tactically played exactly right against Germany. However, in doing so France will be hard pressed against Italy. Italy can cut support for the move to Piedmont or support a bounce with Tyr/Venice and ensure that France cannot build in Mars without the expense of giving up Piedmont. Italy also has the capacity to threaten moving a fleet to MAO, a disastrous situation for France.
This is the result of French decisions earlier, which I am not going to go back and find the specific season but which I remember bringing up. France would be much better off with Russian help against Germany (can always crush a small Russia later) while France was able to focus more on the south. Taking Edi in 1905 felt good, but it meant Russia couldn't stand up as well to Germany. As a result, Germany was strong enough to survive French aggression until Italy helped. France was perhaps surprised (at least I was) at how easily Italy was able to dominate in the south, or maybe was worried that Russia and Germany would later make up, or something else.But it turned out to be a bad decision. France won't get cut out of a draw or anything, but there's a serious chance that France's solo push will end up enabling an Italian solo push.
Getting three builds is good (though the more I look at it the less certain I am that you want to take all three of them now), and there's maybe not a lot you could have done differently this turn. The move to GoL may have been in expectation of Italy moving there and Ionian moving to Tyr Sea, which would look brilliant, but Italy's moves that happened were much more likely (I expected Ionian to support Tyr to Tunis). You could have taken a 50-50 guess on disrupting half of that move, to give yourself more time to get fleets to the south. The good news is that Italy probably will not be getting a build this turn. If you're smart about it, you can get yourself into position to turn that disadvantage around quickly.
If France has a solo shot, it requires 6 more centers (assuming three German centers are gone this year) and not losing any centers you've got now. That will be tough!
RUSSIA: C
(again this is for the turn and it doesn't mean Russia is in better position than France)
So you are staying alive. Way to go! It's tenuous. With luck you might even get a build, or this is all a ruse to make elimination easier. Either way, you're still in it now, and you have some good possibilities.
ITALY: B-
This is the other thing I was particularly interested in. Italy supported Russia to Sev this turn. Let's do some counting to see if this was a mistake.
Spring 1907: Italy supports Bul-Aegean, Rum-Bul, Gal bounces Sev out of Rum. Turkey retreats from Aegean to Smyrna.
Fall 1907: Turkey has to order Smyrna support hold Con, to protect from Bul+Aegean, so Italy orders Aegean to support Ionian to Eastern Med, which retreats to Syria, or is disbanded and rebuilt as an army in Ankara.
Spring 1907: Either way, now it's three Italian centers touching two Turkish home centers; Turkey has to guess right. Italy would also have the option of, if the army rebuilt, convoying to Syria to guarantee taking one center in the fall.
Overall, I'd prefer to be a beat ahead, even if it meant potentially being outguessed and losing the advantage. If Italy is going to have a solo shot, Italy needs builds. This means that a build is not guaranteed for next year without Russian help.
I don't know who earns the demerit for this, so I'm perhaps unfairly blaming Italy (since Italy made it possible). Given that Russia could not stop Germany from taking St P anyway, why didn't Russia move Moscow to Ukraine to take Sev in the fall? That eliminates the retreat danger and lets Rumania do something more productive.
TURKEY: D+
Failure to cultivate a better relationship with Russia has cost you a center. Way back in 1903 you took Sev, and all it has done (literally; you can go back and look at the map) is usually make things more difficult for Russia without getting you much benefit. It never supported Rumania or helped take a center, and it didn't get you meaningful German help because you never managed to get on the same page with Germany.
This game has been a good example of the fact that it's often more beneficial for you to let a neighbor keep a center. Both France and Turkey would be better off right now if Russia were just slightly stronger.