Here are the Subterranean creatures, Mega beasts, and Semi Mega beasts as requested.
I didn't have a chance to do the minor edits so many of these aren't quite done. A few of them may get a redesign.
I also added my new goblin design showing all the possible skin tones. Still a WIP. I am in the process of roughing out facial variants to get more variety out of them similar to how I did dwarfs.
At the bottom of the image is an example of how I am doing the animal people.
I am using at least 3 sizes for all types of creatures based on their raw size values. Some of these share the same base body as ogres, trolls, humans, goblins, etc. This will reduce the amount of clothing to a manageable amount.
Most of the bodies are already done, so it's just a matter of painting the unique heads and color palettes for each.
In the example I have small hoofed body shown as the gazelle man, medium - deer man, Large - elk man. There is also a fourth size for hoofed; giraffe men would be an example of that.
Avians; small - cardinal man and medium - emu man.
There will also be a few outliers that will have unique sprites or only be shared by a few like the Alligator man in the example.
Unfortunately, I've been busy and will continue to be so for the new few months. I should be back at it in full for the winter months.