Britain (along with Japan and Portugal) and Germany would probably agree to either a status quo peace or to taking parts of Germany's colonial empire in exchange for accepting German domination of the content. Wilhelm would want to push his Weltpolitik ambitions further but he had fairly little real power during the war, and both the Reichstag and Hindenburg/Ludendorrf would want a more pragmatic approach, and politicians in these Entente countries would probably rather trade with Germany rather than push for revenge.
The popular trope is to make France a revanchist communist/fascist* state, but I have my doubts about this--the Lost Generation created a culture wary of any kind of war, and a stronger Germany (that would have annexed Briey-Longwy forced the destruction of forts north of Paris) would be impossible to defeat, and in fact France would probably be drawn into becoming economically reliant on Germany, though not to the same extent as Germany's eastern puppet states.
Russia would be significantly weakened and in a state of civil war. Germany would want to aid the Whites after finishing the war in the West, but this could fail just as Allied intervention in Russia IOTL failed to stop the Bolsheviks. Russia could also simply collapse into warlordism given how fragmented the White movement was.
Italy proper would lose little to no territory--Austria had no ambitions of taking back Venetia or Lombardia--but would have to forsake its claims in Albania, and depending on how the war went in the Middle East and Africa, it could be forced to give up Libya and Somalia to pro-Ottoman Sennusi and Dervish states. They would definitely lose Rhodes, though I'm not quite sure who would take it (between Germany, Austria, Turkey, or perhaps even a consolation to Greece). They would certainly have a politically tumultuous future between fascists, socialists, and anarchists.
Belgium would become a German puppet state with expanded autonomy for the Flemish, while ceding its territory east of the Meuse to Germany, as well as the Congo. However, they would gain some border regions from France that were desired by Flemish irredentists, including Dunkerque.
Serbia and Montenegro would become Austrian puppet states, but Vienna and Budapest would probably avoid annexing them outright given how much trouble they would cause. Romania would lose some mountain passes to Hungary and most of Dobruja to Bulgaria while gaining Bessarabia, and Germany would gain control of its oil reserves. Greece would lose territory to Bulgaria, and Salonika might be leased to Germany as a naval base.
The United States would almost certainly have remained neutral in any CP victory scenario unless the war is ended before Americans make it to the front lines in France. If this is the case, then the war is viewed as an absurd folly and the US retreats even further into isolationism than it did IOTL, other than seeking to repair relations with Germany through trade.