Here ya go. I had to reupload them because I couldn't use my regular server as a file host. Christ...i did these back in 2017...6 years ago already.
Fanart.psd >> https://file.io/H5iZ9KFVNLis
SNES.psd >> https://file.io/TfwMffOFF7I0
NES Overlay.psd....just remember, this I made for RetroPie but maybe you can still reconfigure it to work for Launchbox >> https://file.io/0A4s2CSK1GvP