^^ indjo has you covered on body critique.. he is workable with the right girl.
As for showable.. nope. He would be rejected firstly due to being a pet shop fish, and he has too many faults.. a pretty boy and a good start to a nice line though :)
For reference here is one that had won a category at the IBC convention/show very recently. You can see the standards for show are very high, and you generally will not find that in a store.. the people selling the bettas to the wholesellers will always take out the best before sending them out. Here is a video
of 2 that recently won BOS/RBOS at the CBS show this month as well. Your guy is very lovely and with the right girl and breeding the right offspring you could easily get into the shows with a line from him :)