We have the same pet! I think mine is a female though. I can't find any nymph photos, but I took this picture today of her on my epiphyllum. She's been hanging out on my orchids since she was a wee little killer.
Fantastic pictures! I love praying mantis and I get ridiculously excited when I find one in the yard.
My girls are getting to ages where they have started to show an interest in "bug catching", so far it's just been lightening bugs, but I can't lie I find it to be so much fun! (Don't worry we bring the lightening bugs up for a story and then we let them go to find their "friends".)