EDIT:
Went in and Dodged/Burned a ton of areas, in order to add emphasis on the darks and lights, seeing how many people were having a hard time looking at this and figuring out what it was. Hopefully, that won't be a problem anymore.

Oh, man... this is, undoubtedly, one of my most difficult and tedious, yet most rewarding, drawings that I have done in a loooooooong time.
Well, this is one BIG battle of epic proportions. It is another one of my usual My Little Pony: Friendship is Magic and Nintendo crossovers, featuring Mario and Twilight Sparkle facing off against Giga Bowser and a monstrously constructed Discord. I normally would've stopped at the characters, but I was persuaded into implementing a background by fellow peers of mine, and I'm very glad I listened.
Other MLP/Nintendo crossovers:
[link] [Applebloom + Ness]
[link] [Applejack + DK]
[link] [Fluttershy + Pikachu]
[link] [Rainbow Dash + Fox McCloud]
[link] [Trixie + Daroach]
UPDATE:
EquestriaDaily acutally featured this drawing! HOLY COW...! Thank you soooooooooo much! This just made my month!
[link] <<

UPDATE II:
Someone I associate with offered to do a color rendition of this same piece (with my permission, of course.)
[link] <<See for yourselves!
UPDATE III:
Holy cow, this drawing is getting a lot of recognition... now it's featured as a fan-fic cover created by

. It's a crossover between Super Mario Galaxy and MLP. Check it out!
>>
[link]<<
Oh hey, whaddya know!
[link]