Just wondering what I could do, made it in about a minute.
You could spend more time on it. One minute does not sound like you spend time on selfreflecting and trying to fix things on your own, which you should before expecting others to help you.
I need an idea for some sort of chest detail, and I need to fix the lighting quite a bit.
Even with small sprites you should first try to get the volume right. Try to shade it while defining the bodys volume instead of just putting a darker shad on the left side and a brighter shade on the right side of the form you've chosen. Think more about depth. When you've done that you can still exchange certain pixels to indicate detail. I really hope you take time to do so and am looking forward to see your progress
