I think you're being too hard on yourself, but I think all artists go through something like that at one time or another. The nice thing about seeing the flaws in something is that it means we're humble enough to know we can improve. But if it overwhelms us, then one can end up stuck. I'm glad that you're trying to work through it, and sharing your stuff in the process.
I thought this piece was lovely, good for a peaceful fantasy setting perhaps. I hope to hear more from you.