That is sad that you want to leave because you have not received as many responses as you'd liked. What about the ones you have received and the people who have taken the time to write them? And the views you've had, and people who were considering something new?
Your choice though. I liked your work and was trying to learn a bit. You had me thinking. I would not have created a digital forum if I didn't consider it an art form. The lessons were over my head a bit, but your renderings are really cool. Sometimes I don't have all the time in the world to follow along with lessons, but I do come back to some and try to learn stuff.
Anyway. Best of luck to you. It was a pleasure to see your work.