Of all the pixel art I have ever done (which isn't much) the largest I've ever worked was maybe 64 x 64. I decided to be ambitious and kick it up a notch. I plan to draw three of these ancient, stoic-faced individuals (from different angles). Each head will be worked in a 200 x 200 pixel field. By the end I hope to have them all interacting with each other somehow. As far as a background goes, I have not yet decided.
Here's my main concern: Color choice. I think what I'm looking for is a selection of dull, earthy tones... but I don't want to just choose one color and ramp it from light to dark. All right, onto the pictures!
EDIT: Just showin' my drawing process up above.
THANKS for the tips! A big help. I think I conjured up a pretty decent 12-color palette which I'll implement rather soon. I'll keep y'all posted.