Pickin - initial thoughts (and I am not an expert) are that his eyes are too dark, as are his shanks. Also, he doesn't have much color coming in on his saddles; do you know if he has pure black crossed into him (per shank color)? His color balance isn't great, but it's not bad, either. Some people think it's okay to use pure black and that it helps to "cover" mossiness in the offspring. He appears to have decent shank feathering, his tail angle is good, I do like his nice, long back, and he appears to have the correct topline - all this is never 100% certain when giving feedback via pictures, but from what I see, those are my pesonal thoughts.
Gosh, I'm sorry to say this, but it also appears he has a side sprig on his comb (see that bump that juts out to the side?). That would be a DQ in a show. He's also got a thumbprint or twist in the comb, this is not a DQ, but a fault. I honestly feel like this male has much too much negative going on to use him as a breeder. Again, just my opinion, and I'm sorry to bring bad news.