Using leftover acrylic paint for collage painting

For part of the painting I peeled off leftover acrylic paint on my palette and stuck them on my painting.  Looks kind of spooky.  12X12 canvas.

Study in blue

Not sure about this one.  Acrylic on canvas, 12X12. 

Another Abstract

I'm taking a class at the Art Students League of Denver from Tracey Russell, www.traceyrussell.com "Exploring the Language of Abstraction".  This is one of my acrylic collage paintings on canvas 24 X 20.