I don't intend to modify the palette anytime soon due to how I made it.  I need to resort the colors to put the greys in better places but other than that, it is made mostly for my own needs.

Nice colors, but that palette is in dire need of more contrast.

Some of the colors are really not needed, such as the 3 green pixels. I think you could make it really good with about 8 colors.

It's small, but you express a lot with that size. 

Sorry about that.  I thought whatever size I started with (I think it was 48x48) would be large.

quite a small portrait indeed.