It looks too tall, Rofkt. Most of the American pistols have carving from 1/32 tall down to almost nothing.
For your next practice piece, cut the carving on a curved surface.
Good for you, practicing like this. Your hand and eye get a great training, so when you start on the real gun, they will know what to do, even though YOU will be sweating bullets.
Keep up the good work. Let's see more!
Tom