Daniel "Abysswolf" Oliver's pixel art reminds me of the Metal Slug games, especially Barret's look in the Final Fantasy VII piece above. But he's mostly into JRPGs and recently, he remade the cast of a couple of classic games as detailed, colourful 2D sprites.
Here's Breath of Fire II:
Final Fantasy VII, with Cait Sith, Cid and Vincent added:
Final Fantasy IX:
The characters from Chrono Trigger:
And some awesome Monster Hunter armour sets:
There's much more on his Tumblr and DeviantART pages. I'd love to see the cast of Final Fantasy VI remade similarly. They always looked so pixelated.
Pixel art by Abysswolf [DeviantART. Tumblr]