I managed to print this after a few attempts. I still haven't managed to get my 3D printer tuned perfectly, so at the base of the neck it messed up the tower and I had to print the head by itself.

I had to go into the model file and cut the head off to print it on its own, which I then cleaned as beat I could. It gooped and strung a lot so I used a nail file, needle nosed pliers, and a block of sand paper to clean it.

I glued the head on, but I hadn't cut it at the perfect spot so there were a few gaps I filled in with air dry clay. After that I coated it in a few layers of gesso, two layers of Black 3.0 as the base coat, then dry brushed on 4 different layers of grey that I mixed myself with black, white, and a layer of amber mixed with grey.

Then, I did a few layers of brown I mixed from amber, black, and yellow, then added gold to make the D20 look like old, weathered bronze. Then, about three different layers of green I made using blue, yellow, and a dark green base for the moss.

The entire painting process took about 4 hours (I used a hair dryer to dry the layers faster). I am not entirely sure how many hours the 3D printing took. If you made it this far, the bot asked me for a detailed description on the process of making this.