How big is it? Im thinking female too cause of the head shape, no trialing fins, color is kinda dull etc. But it depends how big it is, if its still small, then it could be too early to tell. Also if you just got it and its stressed, that could explain dull colors.
(better picture quality) Sorry I dont have a better camera if you can tell the difference from the top pictures and the bottom one. The bottom one was taken from my camera and the others were from a borrowed one.
Wont be any better quality
(full profile) How much fuller profile do you need than the bottom pic?
(Age/Size) Age??? I have had it for 3 months I think Size 4-5 in
(lighting) I dont know? it is a long tube fluorescent maybe???