That's about the size a 6month to a year should have... Looking at the head and rest of body, it's clear he's underfed

Mine is just over 2 years now and as a male he's close to 9feet and way bigger in girth. Like Reptiledude987 said, he won't grow to his full potency anymore, but he still can get some length and girth if you feed him properly, meaning enough to grow but not too much he will get fat. Do you know if ti's a male or female? as for the morph, i'm not the expert, but there could be pearl in it, no?