It's hard to say without seeing his daddy but a bantam cochin should have the form of a basketball. Your guy is standing a bit high and needs much more feathering. Hopefully, he'll get that. You should not be able to see feet or see in between the legs. He needs to be much rounder. Do you have pics of the parents. That will really let us know.
Yeah he's a banty I blew up the pics to get more detail. I'm hoping he will feather out better as he gets older. So far he's the best I have hatched. But now I have some pointers to look for improvement. Thanks.