Beware, as a high elf he shouldn't use too much armor, perhaps some boots are enough, High Elves used more robes, shirts and that kind of things than armor. Colors are fine as long as they don't look too monotone. And you should try changing a bit the cape design, I understand that the BE's cape has one of the worst unwraps on wc3 but it still is skinneable... try something similar to Jaina's Cape for example.
About the boots... They're nice, but the gem on the top looks quite random, perhaps if you try something similar to these gems?: