Oval Lithophane Frame

I wanted to make a lithophane of each of my 4 children to put in my wife's stocking this year. I made this frame in blender to hold them. It is printed in translucent PETG, but PLA will work fine.

I printed the frame at 100% infill, because it is translucent, but 20% would be fine with a solid colour.

I made the holder with LED strips to illuminate them for when they are not hung up. It is still rough, but looks okay from the front. I printed it in two parts and had to turn the front sideways to fit my print bed.