Protecting what I Live for

I drew this is ShiPainter again. Can't live without ShiPainter, I suppose. The background is crappy.. I had nothing better to do. And gosh, its been too long since I last drew on ShiPainter.. Notice my pictures getting worse? xD

Oh yeah, and this picture is of Kira (my character, not the ones you know.. eg. Gundam Seed). I wish I knew what he was protecting though. Oh and please tell me how I can improve.