So, I still haven't gotten my reward, from not only the tengu sky strike challenge, but also from the recent FFA Christmas/winter skin MVP screenshot thing, in both cases I provided my ID, and was not told either one was rejected, in fact, my legendary sky-strike submission had a small orange tick under it (:admin_valid:) 

I'm still awaiting my prize of 1100 acoins (in total) for both of these.

Additionally, from the tengu sky strike challenge, 4,500 implant parts (as I have the implant already) and a legendary skin of my choosing (as I also have 'Deathless' already) 

I have the original video link (which I recently made public), as well as the screenshots.