Its very hard to tell from the pics, the first 2 pics I can't tell. The last 2 look female to me. You need to take a close up side shot so we can see the face and lower gill plate better.
After those pics I'm changing my vote to male... But venting a fish is flipping it over and comparing the genital pore and anus. Females have a larger genital pore where as males have a tiny one...