I think your drawing/painting style are great! Your current 3d stuff seems like you’re still getting used to the tools… you definitely can get it done, but your proportions are off.
You might try doing a 3D object or scene directly in the style of your paintings, instead of doing ‘realism’. Maybe try to model one of your paintings in 3d, even using it as the texture starting point.
If you want to focus on realism, work from good references to help establish proportions. Most 3d apps have a way to use reference images. I use blender and use image planes and the image panel to keep several views of the object im working on.
I wouldn’t worry about follows right now. Focus on and hone your art and create a unique style and people will start paying attention.
Thanks for sharing your work and keep it up!