Pastels?
 

I'm getting ready to buy some open stock Sennelier pastels to add to the Rembrandt portrait set I have. I was wondering if any of you had some favorite colors I might try.

There is nowhere near that sells them, so I am having to go off a color chart. I'm especially interested in your favorite dark dark colors, and light colors for good highlights. I found a source on Ebay that sells them for $1.99 each. That seems to be the best price I have been able to find. Any help appreciated!