If you like him that's all that matters. I've had some fish that weren't the prettiest but because of personality or just rooting for the little guy they became my favorite over more "desirable" fish.
That said he dosent show much color, tail is weak, and weak kok. I give a 3. No offense, I wouldn't critique if opions weren't asked for. Nevertheless, he could end up being your favorite fish of all time. There was something that attracted you to him so never give up on him