It looks like you didnt do a good undercoat and that the paint has worn off in places. Also on the head it looks like you didnt do a good over all spray. To get a good spray you need to do several thinner coats to get the best cover and let them dry in between. Dont spray where you can get too much moisture in the air spoiling the coat and keep dust and things off it too. Feel free to message me if you want any more tips and I'll be happy to help :)