This is going to sound really horrible, but again, in real life, Wilhelm II was aloof, withered in his left arm, and a bit strange in terms of how he was. Here's an excerpt:

"Amongst the Kaiser's most intimate circle, this sycophancy could take the strangest forms--with one mediatised imperial count allowing himself to be led before the Kaiser imitating a poodle "with a marked rectal opening" while the Chief of the Military Cabinet could dance before him dressed in a tutu and a feather hat. Bulow, none the less, could justify the regime before the Reichstag in 1903 with the words: "The German people do not want a shadow Kaiser, the German people want a Kaiser made of flesh and blood.""

Welcome to what happens when most of Europe's royalty at this time is pretty inbred. :D I think he'll be awesome in RP none the less as he was very militaristic and the way you've put him down is pretty good- I'll modify Dmitri's own position. He'll have his quirks and definitely a few things that will be very laughable, don't you worry.