the Raiden sprite is nice. Kotal Kahn is a bit muddled and almost blurry and could use more definition (shading) on his muscles and leggings, but it is d*ng decent especially considering there is not much reference material for the character. the bright light makes it difficult to make out his features but I see what you were going for with the sun and the lightning effects. it is nice to see new characters and new fakes and new fakes featuring new characters. good attempt at a Frosty ForestTM background.

a more action oriented shot could be a fun idea.

If you hadn't called it a sprite edit, I would've mistaken it for fanart. That's just how good the character sprites are.