I have very quickly sketched in and clothed the Alice Neel's pregnant woman ( Alice Neel's "Pregnant Woman" (1971). Photograph: Estate of Alice Neel and from http://www.guardian.co.uk/artanddesign/2010/jul/07/alice-neel?showallcomments=true#end-of-comments

I think this illustrates nicely why Alice Neel's "sketchiness" wins hands down, because it shows in the choice of colours (the gangrene green!) that tenderness and vulnerability often requires a walk away from the palette of realism. But she did not go down the German expressionist route :

http://cgfa.acropolisinc.com/j/p-jawlensky1.htm