@moonlit dream:

Nah, it's a challenge XD I just wanna see if I can do something with the background because it's so...plain XD Cool pose demands cool background BD I'll see what my amateur skills can do for me LOL

Thanks, though! :D 'Cause I didnt know that XDD

To submit it in the challenge, you need to go to fan art> challenges, then press the submit button next to the challenge you want to enter. :)
But if it's not a challenge and just a regular contest, then nevermind. xD