Not bad, the duplicolor ceramic is a good paint , but offly thick. I think you may have put it in the oven while it was still curing or wet and it started to orange peel or ripple a bit.
The trick before backing it, is to let it dry for 24hrs. then back it in the oven for about 1 hr and then let it cool in the oven at 200 degrees, to much heat will damage the finish, or if you touch it while it is still hot the paint will come off or get finger prints on it, till there is a full cure.
Brownells allumihyde 2 works better will air cure over night and if you leave it for a week it will even hold up to holster wear. It dries good enough over night to assemble the gun and shoot it the next day.