The smallest carpet pythons will get bigger than you're looking for. A ball python may still get bigger than 4 ft, more likely if female. As long as the proper research is done, they can be kept without much trouble, excerpt some people call them pet rocks that poop! If you're looking for more...
Definitely a hot mojave. Flames, blushing, reduced neck pattern, he's sure got it! Some people prefer striped mojaves - I like the ones that look like yours. :main_thumbsup: