Haha, I love it! That's very well executed, I love your linework!
To answer your question, do you mean to submit this kind of art to the Source, or do you want to share them on the forum?
I think for the forum it would be no problem, as long as you follow the
rules.
If you want to submit them to the Fanart-section, I don't see any problems either, as long as you follow the
rules for submitting Fanart.
Looking forward to see more of your meme-based Spirit pics!