Funny you mentioned this because I went through a similar search last year when I moved closer to Midtown, and I also had no clue where to start. What helped me was looking into cultural art restoration ideas on sites like https://feelflow.space/pages/mural-painting-services-in-philadelphia-pa since they show how artists handle different neighborhoods and interior layouts, and from there I picked someone who had experience with compact spaces. My mural ended up being way softer and more balanced than I expected, and the artist even suggested adjusting lighting so the colors wouldn’t look too harsh at night. If you’re worried about picking the right person, browsing examples first definitely makes the process less chaotic.