I love the color on this boy! You hardly ever see such a nice green. Like its already been mentioned his anal is a tad long so find a female with a short anal. Also I wanted to mention this but I think his caudal edges could be slightly sharper (what i mean are the edges are softly rounded should be more D) than what they are but he has that 180 spread. He has an upright dorsal which is a plus and in future generations you could start pointing it more in a forward direction. I really like his minimal branching, it makes all of his fins look so clean cut instead of being in a ruffle. To me, I think his top line could be a smidge smoother than what it is, nothing to sweat about.
Overall, I think his coloring is awesome and he could be a great prospect if you wanted to start a green marble line, it could take a few generations to fix some of the issues he has but if you like projects this could be well worth it
P.S. I am no expert, I just am used to receiving and giving critiques like this from dog shows. Studying conformation like a madman before the convention so
I know who to bid on during the auction~~