I think it is fine for the group, but I will suggest asking TK, the founder as a second thought. Though I say you should just submit anyway as you did say it involves Mirage. And the fact that it seems interesting to me.
Also, SO sorry if we have not replied to your comment/question. I personally have been busy and forgotten my duties as a Co-Founder, and as TK I know has been busy as well.
~MoonlightTF
ps. plz if submitting, submit to the right folder. thank you