This is most definitely one of the most beautiful surreal paintings that I have ever seen! Most of them are agressive or have quite negative impact on me. But this is different.
At first sight painting looks dark, but it really gives hope to me! It opens the door into another world, a better world (which is probably situated within ourselves).
Painting within a painting suggests the above mentioned. A bit unusual composition and subtile colors of choice are impressive! Fading structures symbolize urban way of living, yet from some antient times - but little painting with a tree symbolises freedom of a soul and nature.
I can only say Congradulations!