Poecilotheria are so hard to sex at that size. The one I did get a sex on had a HUGE spermathecae (well for her size and under a scope) and she is about that same size if not a little smaller.
If that area is a "flap" so you can lift it up it might be. But Poecilotheria have a double spermathecae, a wide one over a bell shaped one, not the horned type.
Check out this site.
http://homepage.ntlworld.com/the.tarantula.store/spermgal-Poecilotheria.htm
I'm sorry but all those pictures still look male to me.
If that area is a "flap" so you can lift it up it might be. But Poecilotheria have a double spermathecae, a wide one over a bell shaped one, not the horned type.
Check out this site.
http://homepage.ntlworld.com/the.tarantula.store/spermgal-Poecilotheria.htm
I'm sorry but all those pictures still look male to me.