This is a remix of CosmoWenman's Medusa Rondanini and DeltaWhiskey's remix of Green Man Bas Relief Wall Hanger (both on Thingiverse).
I used Meshmixer to combine the two models and to add a few touches of my own. It is about 125 mm in diameter. The back is flat, so you will have to provide a means to hang it from a wall.
I printed it in LayWoo-3D 'wood' filament using a 0.6mm hardened steel nozzle, using varying temperatures for color variation. Also used an adaptive layer height, going from 0.3 to 0.4 mm.
Please Note: I included the gcode here, but I do not have the retraction settings for this filament quite figured out. There was a lot of stringing that needed cleaning up (see ‘before and after’ photo). So you might want to mess with the settings yourself.
The author hasn't provided the model origin yet.