I like the background concept: obviously I was immediately reminded of Altered Carbon and "double sleeving" but this is its own thing.
The pixel art is gorgeous but pasting the tables in without formatting them was a bad idea.
Speaking of tables, some more random encounters/events (or just anything more on the GM side than general pointers) would have rounded this off nicely. I think you've done well, and I commend you for completing the job. I failed in that task, so you have my eternal envy.
Oh: you also used d12s, of which I am a great fan!