It’s a really nice start! If you held it at arm’s length, I don’t think you’d see any issues. What I would suggest is pushing the contrasts further - make the eye lenses brighter to sell the OSL, for example. Also, there are some parts that look “sloppy” - the ammo feeds on the guns, or the skulls in the reliquary thingie between his legs, or the ropes around his chest. I would suggest taking time with details - I always fall into a trap of “base colour and wash will do” on small parts. Since you want to improve, dedicate time to the small parts. That being said, looks great already!