Kinda looks like the ones from the Willow movie! I like it. Make it uglier in the face and we could use it, especially if it has animations to walk upside down on ceilings or the undersides of bridges.
On the topic of DND trolls, some of the legend lore says that green swampy spongy trolls are male green hags and/or are creatures made by the green hags as servants. I often run with that theme when I portray green DND trolls in my worlds. I also keep the extra-planar connection strong with my hags. That makes trolls less orc or giant -like, and more a servant of something more powerful in a definite chain. Escaped trolls or trolls no longer under the command of green hags become more zombie like, personable, or mutate out of their original shapes, and I use that to explain things like DND scrags.
I personally loved the variation of frost and ice trolls in the Aurilite areas of Icewind Dale for the Infinity Engine. They held fairly fast to the long-time portrayal of the troll "species" in DND, but gave variations in function and scale.
The more recent portrayals of trolls as thinking creatures, which could somehow issue commands or even wear gear, just blows my mind. I am not unopen to change, but the niche that newish troll portrayal filled was already crowded.
Anyway, back to the non-dnd troll topic: I've seen a lot of prototype drawings of how people would like to portray trolls in various games. Most of them never follow through with the really neat looking stuff. Some of the stuff I have seen take curly rams horns and mix them with a hulking body, and toss in some elf ears like these:
