FB caricature pages

Weekly caricature competitions have sprung up on Facebook like weeds...and I haven't had time to participate in any of them for ages. There used to be only Caricaturama Showdown 3000, which I regularly entered in the past. My motives were A. practice and B. having samples for my portfolio. One colleague of mine, at the recent ISCA convention, entered the portfolio competition--- and his consisted only of pieces he'd done for Caricaturama.
So, now there is Bookface Caricature contest, Awkward Faces, Traditional Caricature Art contest, etc. etc. etc. Some pros around the world enter these with very elaborately rendered pieces, and I always wonder how they find the time...and there are also plenty of newbies trying out the artform and hoping to learn something.
Anyway, since my portfolio was nonexistent this year, it's back to doing small sketches for these competitions. I don't want to spend more than an hour on any of them. Here are a few recent ones.

Pencil sketch-Rosario Dawson

Marker sketch-Fred Astaire.

Another pencil drawing--Ella Fitzgerald. They are all going in the same sketchbook.