I have unwrap my fish and colour the skin. However not sure why the tail portion is partial texture. Initially I tot I have accidentally peel off the faces on the tail but when I check, the faces seem to be right there. What goes wrong with my little fish? :mad:
this looks like subsurf distorsion!
try to add some loops near these edges and may be make them mark edges with weight factor at 0 or 1
this should help