The Umber Hulk won the last round of voting and is up next for my take on it. I've put together a quick moodboard for the general direction I'm thinking of taking this design. While researching for my next sculpts I often use the site below as it gives a much more in depth description that I can draw ideas from.
https://forgottenrealms.fandom.com/wiki/Umber_hulk
I particularly like these few lines -
"Umber hulks looked somewhat like a cross between a gorilla and a beetle"
"They were extremely bulky creatures and had a highly muscular physique"
"Their powerful arms and legs both ended in tough claws, able to rip through rock with ease"
None of the mini's I can find seem to take an approach that fits the powerful description, most have skinny or small back legs and over-sized forearms without the upper arm mass capable of supporting them... so I'm thinking of starting with a gorilla-ish base and building from there, it has a far more powerful feel to it and I reckon it could be something really cool.
Let me know what you think or if you find any other cool reference.