Feedback requested

I'm feeling discouraged. I joined a local gallery 3 months ago. I mostly work in 12 by 12 inch canvases because I can experiment constantly. Still, each one takes steady planning, study and painting spanning a week or more. Given that and the cost of supplies, I asked $100. I didn't sell a single one in 3 months. This painting is typical of my work. Am I asking too much?

I'm feeling discouraged. I joined a local gallery 3 months ago. I mostly work in 12 by 12 inch canvases because I can experiment constantly. Still, each one takes steady planning, study and painting spanning a week or more. Given that and the cost of supplies, I asked $100. I didn't sell a single one in 3 months. This painting is typical of my work. Am I asking too much?