Posted 21 July 2012 - 09:23 PM
Normally, you would lay down the base color of the object first, and then find out where you wanted to put the shade tone, and lastly the highlight tone. Doing this will give you three major colors to work from. If you need to make something light or darker you can go from those three base colors. If you need a visual example let me know and I can cook something up for you.
A good start. You should focus very much on what you want your art to look like. Anybody can throw down some pixels but what makes the art great is the detail to concepts. Generally for pixel art you want to limit yourself to a number of shades. Try not to go too simple or you will get something that looks like a grade school kid did it, but don't go too complex or it will lose the pixel appeal. The key for you is shade and highlight tones.