Hi IndigoShirtProd!
First off, thank you for taking the time to give me feedback. It is much appreciated! Those tips are quite helpful. I'm thinking, based on your feedback, that I might need to push the image's colors further. I'll apply those suggestions and see what I come up with.
As far as going into a drawing program with it, don't feel obligated to do so, but if your have the time and inclination, I'd appreciate it.
Thanks again! Your words have upped my motivation! 