I printed this too densely in ABS, 25% infill and had serious layer separation and warping with a heated platform. I'll try it again but it's a 14 hour print so I'll have to watch it this time.
PLA would be a better material for most of this, just as a note.
It looks like wood
Change your PLA, it is bad quality... Or grow up the temperature of the buse
It was actually bad quality ABS. I reprinted it recently. I'm having trouble with the coin feeler tabs.
You can just let 10 -15 % for Infill, it's faster and quality is the same
Make a heated build space by enclosing your 3d printer in an acrylic box.
At our makerspace it's $.10/gram so that was a very expensive failed print.