I like the subject, but the composition doesn't quite work for me. It seems a little tight on the left and right sides. Some fill flash might have been able to clear up the shadows in the center as well. The colors and sky are great though.
While the idea is ok, it it has a few floors in the photo. It needs to be straighted more! I can see that you have tried and now there is a gap on the bottom right hand side that should have been cropped. The hard shadow could have been softened if you had used fill flash. Nice sky, nice colour and well framed.
Good take on the challenge but not sure how it would really play as an album cover. The right side is overlit while the left is just about perfect. A 7