(uf its difficult to critique...ah!i know!)
well , i've been drawings a lots of bird's wings, and i know that this drawing need more wings (but i love the drawing!! aayyy ...) ....and...i think that nothing more...maybe you can put shine(i don't know if i put it well O_O) like on the hair,but on the shirt or trousers ..hmm...the eye i think is really big , but cool becuse you put it in blue, the gum its awesome too , the position..its incomode for the guy, i think, if you try to put that pose..your neck its going yo hurt you like me writting this ''critique''