Here you will find a female robot 230x230x3 white/grey scale Lithophane. I have designed a frame/lightbox to fit this size below is the link to it on makersworld I also have a link to my LED light strips I use.

This is a high detailed Lithophane so slicing does take awhile, please be patient.

Frame: https://makerworld.com/en/models/107139#profileId-114434

LED Lights: https://twistedprints3d.com/products/3-pack-led-rgb-light-strip-with-remote?utm_source=copyToPasteBoard&utm_medium=product-links&utm_content=web