I don't have production experience either. Are you asking if an artist can get a job as a junior by only displaying decent anatomy sculpting with polypainting?
Thanks for the kind words :) @jStins - haha printing that cape might suck? :P @Hard3d - there's nothing special about the texture, this is a polypainted sculpt rendered in marmoset.
You can polypaint on the model (which can be useful at times) and you can paint on the document, but the latter doesn't really compare to nice annotation software.
You have to activate the polypaint on the subtool (little brush on the palette) so the dynamesh has the same behavior on polygroups as before. Don't ask me why.