If you ask for credit when you don't deserve any, you won't get it.
Can I haz credit? I host the site you put this thread on.
JK, nice job! Though, the casino night theme is actually a port of a Sonic 2 Tileset, while this is an actual SMW theme.
Old 3DS XL info:
I used to have a 3DSafe A9LH V11.3.0-36U with Luma in my CTRNAND. Since ReiNAND Reibooted and Re-Reileased, I "switch"ed back.
Right now, I have boot9strap with Luma 8.0 as my CFW. Though, I'd like to see other CFW's for B9S.