Only thing I can say is that Parker's skin is too dark, his skin is somewhere close to Bargnani's skin, but maybe a bit more yellowish. Other than that, it's very well drawn, with a very nice template.
One thing about the Seattle logo is bothering me... I personally think that the bats should be outlined like the outside, because to someone who didn't understand the concept, It may just look like a captain's wheel. Everything else is quite classy.