Pixel Art Advice??

Hey guys! I haven't posted in a while but I wanted to hop on and ask some opinions because I've recently taken up pixel art out of boredom and I don't really know what to think of it. http://orig11.deviantart.net/7ccc/f/2015/211/0/4/oo_lala_by_cadetteamerica-d93hgn5.png I tried using MSPaint originally but I didn't like the options lack of transparency, and color picking so I switched to Firealpaca and this is what I cranked out. I feel like I haven't ad to sacrifice much of my style (for reference) http://img06.deviantart.net/7ad7/i/2015/211/7/6/morganite_by_cadetteamerica-d93fyn5.png but I wanted some advice like I know my shading like this is off. Would it be better if I played with transparencies more. Are my lines too wobbly. I don't know. Any help is appreciated!