Nice work, the perspective is only slightly off, and overall composition is interesting to look at and tells a good story. It's clear to me that you really challenged yourself with this piece, you're trying various advanced techniques which are really hard to get right, and while some areas aren't perfect, the ambition and care taken bring it to a level of which you should be proud. The background you've got here is simple, but appropriate, and much better than excluding a background all together like many other pieces I see seem to do. This piece is decent, it effectively conveys what you are trying to go for, so good work. Keep up the effort, and thanks for sharing your work with me! :)