I really love these characters. I mod the textures, but even out of box they are awesome.
One suggestion, RL, is possibly adding some TLC to the eye-socket area in any future update.
Even when including the character's special custom eyes, teeth, and facial animation profile, there seems to be what I would call a gap between the eyeball and the face.
Now, you can morph the eye forward, but at the risk of poke through.
Here is Heidi Motion plus talking with Denisa..the eyes move almost behind the face seemingly:
But additionally to this, the eye socket flesh also seems especially large in depth, from forward to back.
I made these in Octane render and it shows that the characters could be very convincing, but for that eye-socketty size and spacing.
When its's obscured, it look really good, but when shown, it looks off.
I see real humans actually do have that spacing, but somehow here it was a touch too big, as in like if it was smaller, you wouldn't notice it.
I wouldn't note this but for the fact that it is the Virtual Human set, and there was a lot of detail RL put into this.
But anyway, really cool! I will definitely be picking up any add on volumes / packs for this in future.