I thought I had made a video of how to assemble this figurine but it seems to be missing. Basically, all parts are already printed in the position they should be in. You need to take a very sharp cutter knife or scalpel if you have and detach each part from the scaffolding (marked red). There are two alternative heads. Start by detaching a head, then the neck joint, assemble them, then detach the next joint, assemble it and so on. That way parts won't get mixed up. If you have already detached all parts perhaps the image will help arrange them in the right order. Let me know if you need further assistance.
BITGEM@gabirose I am travelling at the moment with little internet access. I will be back in the office after the 5th of January. I will put some together some instructions for you then. In the meantime, I have arranged the parts the way they should be assembled on the print (look at the 3d preview). Perhaps that helps a little.
BITGEM@brettorious Hi! I am travelling at the moment so I can't measure the exact size. But I built it to be the same height as a lego minifigurine. The 3.9 cm you see up there is the size of the parts as printed as you already guessed.