I have updated the Greninja Sprite.
Reasons and edits:
I gave his ears more definition as well as the "mowhawk" thing he has. I made the tongue longer as well as making his eyes the correct color. I also put the stars on his legs, whereas before they were just blue circles. I fixed his right hand / arm because Greninja can't make a fist and I made the webbing on his hands, as well as the webbing that connects his ears to his "mowhawk". This does make the shading on shiny greninja a bit wack on the white parts, but I think this is a small price to pay for a more detailed and accurate greninja.
Hopefully everyone will agree with the changes.
I'm also posting my Mega Blastoise edit. I know Dollsteak still wants to use his, but I figured I would post it as an alternate as I'm personally quite fond of it.
Edit:
Updated Greninja more and fixed problems with shiny sprite.