This does suit the challenge, but not in a strong way, but it is there.
Nice focus on the eyes, but I feel the background could be more interesting. A little hard when taking photos of these little critters, as one often has to take the image where one finds them.
I have taken photos of these in there own environment, but also in an environment that I choose. I have carefully captured the praying mantis, with no harm done and placed it on a leaf, or flower of my choosing. One must take care with going this and not harm the insect in any way. One must also place the insect back where one found it without any harm to it.....
I see the triangle, but the photo itself is not "great". I wish the crop was a bit different, and it's a bit OOF. DOP looks really cool, and the soft light is nice.