1s2 2s2 2p2
This is what I envision a single carbon atom might look like if such a thing could be visibly seen.
I have always had a slightly different interpretation that other artists typically depict. Rather than drawing boundary surfaces, I rendered particle clouds representing the quantum probability plots for each electron orbital. I envision the orbitals to be turbulent clouds of probability points spread out over regions of space, sort of similar to the Schrödinger idea of particles existing and not existing at multiple coordinates at the same time.
I added artificial coloring going from red for the low energy levels to violet for the higher energy levels in the atom. I chose to bump the transparency way up so that the innermost electrons can be seen and the nodes between orbitals are more obvious. I tried to rotate the different orbitals in alternating directions to reflect the idea of spin, but I'm not a physicist and I don't really know how that works. I just like physics a lot.
The whole thing was rendered with Lightwave 3D v9 with hypervoxels.