This bookmark was designed as a gift for my wife. At 100% scale size, the overall size is slightly over 2 inches wide by 6 inches long. The bookmark height is 0.5mm with the panda head portion having a height of 1.0mm.
Print with 0.1mm layer height. Enable ironing if possible. Color change at layer 0.6mm.
Scale X/Y axis if bookmark is too large/small. Scale Z axis if bookmark is too thick/thin, however this bookmark is already thin and I do not recommend making it any thinner.
Check layer height of color change if changing thickness.