The four hydrogenes (1 proton, 1 electron) are replaced by deuteriums (1 proton, 1 neutron, 1 electron), which is possible but very rare (about 1 Methan out of 50.000.000.000.000.000).
The angles between the deuteriums are false. It should be a perfect tetrahedron.
Two of the electrons of the carbons should be at a lower orbit.
The four other electrons have non-circular orbits.
Not very realistic :