SJ Manga portraits for college 1

I thought to share what i have been trying to sketch for my college project.
Im practicing my SJ heads for my work so here we have Kyu.Siwon,MinWook ^^

thou my siwon sucks a little i think,thou i dont draw him that much and that his manly awsomess is hard for me to draw. Thou i think his face needs to be wider and a tad shorter? I think I'll need to draw another one of him (kills him for being to hard to draw) thou MinWook look cute i had to give them bigish type eyes cause of there cute image,thou sungmin was a bit of a pain in hair and face shape to ==

XD thanks for looking hopefully its ok and not to lame and crappy, to use in my college work after all,if any good artists have tips on drawing and improving on my heads say away ^^