That's the right angle, and he looks like a male. Looks like slight hemi pene bulges there. Up above the vent is the area you look at, see what looks like 2 small sticks under the skin ? If the pic was just a bit closer I could tell for sure, but I think I see the bulges.
The other pic you posted first is impossible to even guess by by the way, so always post with the tail arched up like you have it now in this latest picture.