Trying head studies with watercolor

This is new for me - I’m trying loosen up, stop before overworking, and explore color.  These are my first efforts at quick studies with watercolor. I gave myself a fairly short timeframe (15 min) to work with a hard-to-control medium. LOA gave me all profiles this time.

I’d appreciate feedback - hope I linked them correctly. They’re in my sketchbook 
Thanks

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