I had these old chaos plastic warriors sitting partially painted for about a decade or so.
Positively ghastly. Incredibly boring to paint as well.
Eventually I got so frustrated that I simply ripped their heads off, slapped on some zombie-heads slathered them in lavish quantities of Orc Flesh wash and some other colours in a hurry.
Somewhat to my surprise (and mild disgust) I found that they actually looked decent compared to the virtually absent artistic effort invested in their painting.