I've been creating 4K bezel overlay files for my own personal use for a while and have recently started sharing them for others to use as well. I hope you enjoy them and find them useful. My style is a little different than the wonderful work by Orion's Angel and John Merritt and is focused on a clean, simple, colorful feel.
I also enjoy coming up with my own designs in cases where the original arcade graphics were either minimal or did not exist and try to adhere to themes from the game advertisements, posters, or other artwork etc. I am open to suggestions for improvements to my work and design as well, so please provide feedback as you feel appropriate.
I have created a dropbox share with the graphics files with Retroarch config files. I still need to learn how to configure MAME lay files for these and am open to assistance with that as I use Retroarch MAME core for my own setup.
Here is the link:
4K overlay files
[ATTACHED IMAGE - CLICK FOR FULL SIZE]
Our vertical MAME overlays: http://verticalarcade.com