Ok, the only thing I could achieve was providing a single picture with the exact name of the artist and it would show that picture, only when in single artist picture mode. I'd like to use the "Artist Photo Gallery" option and provide multiple pictures. I'll keep looking...
I have not found a way to provide my own pictures for the Artist Photo Gallery... If anyone knows of a way please let me know! Thanks!
when you save your images as "exact name of the artist".jpg, add an underscore and a number and you can have multiple pics.
eg: "exact name of the artist".jpg
"exact name of the artist"_1.jpg
"exact name of the artist"_2.jpg
Also note that if have more than 10 pics you want to use and keep in order, you will need to number them as "_01", "_02", etc.