Thank you! And I'm sure you'll get there. The biggest part of it is patience, both for the learning process with trial and error and for waiting for your renders to finish, sometimes it takes 8 hours or more, even with my RTX 2070
And you're not far away, the morphs of your characters are very good. To get a little extra spice I recommend to add a bit of imperfection to the skin shaders. I'm a big fan of SkinBuilder (
G3F/
G8F), and if you start in the "Overlays" tab and skip the the fist part with "Build skin", you can use it with any skin preset of other characters.
To get more structure to the skin, simply play around with the bump map and normal map strength in the surfaces pane. Plus, there are many HD details morphs out there that are really good. But to get the most out of them you have to set the mesh resolution / subdivision level of the character at least at 2, better 3 or even 4. But this increases not only the level of details, but also the expected rendering time.