Not an expert on the spotnose but dont see it in your little guy. I've been doing a lot of studying on the more subltle morphs as of late. and as for sexing I know some breeders pop them right out of the egg and I wait until after they have the first shed. so it should be good to go on sexing. I have a c.h. male from a baby bag that looks very simular. I'm keeping him back to try and prove him out as something. lol
good luck