I think you were unfairly pounded in the scoring. I believe this fits the challenge very well - gotta be a new pov to consider, for us humans - last time I checked we can't usually walk upside down on things. I like the toning and the overall quietness of the shot - it has the effect of highlighting the bug all the more and giving it a sense of poignancy.
This is terrific. The scale is wonderful. The inverted view is what sells the shot. I'm surprised people did not equate this to the challenge. You did have some good voters out there though so at least some acknowledged the shot.