This is kind of late but here were the artists that stood out for me at the Three Rivers Arts Festival.
I'm pretty sure that's the artist or the artist's attractive friend. Definitely better than the experience I had last year where somebody was threatening me.
Here's her website. Looks like just simple chalk and charcoal but the portraits show so much emotion. I'd buy her work if I had any extra money.
Here are some other pieces from her website.
And here's one more from the Arts Festival: