Just dropping by to offer some helpful tips to get your Shop going.
You've done a good job at portraying what you're offering, but a little more detail couldn't hurt as well as telling us a little bit about yourself. Something along the lines of
Introduction: Welcome to my shop! I have been drawing for such and such years and my preferred styles are Anime/Manga or Semi-Realistic. I am taking requests for drawing characters, I offer: Black & Whites or Colored (not sure if you do). I do full-body sketches or half body sketches. Offer as detailed as description as possible and I'll draw them to the best of my ability!
Specifics is always best, so you don't have to do so many back and forth exchanges with players it's recommended you have what's called a Request Form to help keep you organized and put up formal requests for your shop, they go something like
Character Name: (if they want it included in the drawing)
Sketch: Full Body/Half Body/Headshot
Unique Features(Scarring, Tattoos, etc.):
You can also specify how many requests you take at a time so you don't get overwhelmed and a section for completed requests. Hope I've helped a little. Best of luck with your shop ;]