Picture Stand for lithophane

This is for the lithophane I have printed. Has a slot for picture 3mm wide and 200 mm long with a 80 degree curve. The block at the back has a angle and a spot for 70 mm tap light. Created lithophane from http://3dp.rocks/lithophane/ web site. I used Promier tap lights. They give a good even light. Got them at Big Lots.