I'm so happy with how it turned out!! I overlaid textures onto all the buildings individually, and added the text onto the Ministry pyramids. As for the back, I got some quotes off of Amazon (thank you by the way!) and used the pyramid shapes as paragraph spacers and to create implied line on the spine. I looked up the original publisher, and created a quick logo for them because I felt like it.
Honestly, my favorite part of the cover is probably the back, especially those 4 pyramids at the bottom that look kind of creepy. Kinda random, but it's still my favorite part! I created the barcode in Photoshop, and in retrospect, I probably should have made it smaller, but oh well.

And here's the cover upside down, because I know you're curious :)
It was a screenshot at an earlier stage, which is why it my look a little bit different, especially the texture of the dystopic Ministries...
Feel free to comment with question or observations!