Playing with NES type things

[Koh]

That's also why the BG was white on the GBC, to make that white look like a 4th color on sprites. But you can tell it wasn't actually one when the trainer back sprite crossed over the wild Pokemon or other Trainers, 'cause you could see right through the white spots.

With that said, the FF games made more use of colors than just the 3 + black. Because the enemies were composed of 8x8 minitiles, they were able to let some 8x8 minitiles be of a different palette, to make the overall sprite look like it uses more colors. http://www.spriters-resource.com/nes/ff3/sheet/31768/

Just keep that in mind if you're going to continue...right now, it doesn't look like these three need that extra push, but that fact can allow you to use more colors as long as you're mindful of what the 8x8 minitiles are.

The only thing I'd say about what's there now is that Squirtle's head could use a shine.