First layer .16mm, then .08mm for the rest, with 50% infill.

Layer height changes:

Start with White
At layer 8 (0.72mm) swap to Black
At layer #15 (1.28mm) swap to color of choice

I have other matching plaid animals here: https://makerworld.com/en/@luciel/collections/1291145

The frame I used is here. I have a profile there as I found the designer's profile was prone to splitting when the pegs were inserted and the overhangs were too steep in the channel where the picture sits. https://makerworld.com/en/models/64865#profileId-188783