"Nostalgia I-IV" is a small pastel on sanded paper series, 13x9.5" each.  The other project I'm working on is new territory, mentally engaging and tiring.  I wanted to come up with a simple and fun fidelity exercise to let my brain rest for a bit, a basic eye-to-hand assignment.  When I researched imagery, I was drawn to these classic archetypal marbles.  Several times while working on the series, my coworkers would reminisce with me about playing with these marbles as kids... hence the title.  One colleague noted it was interesting to see me apply my approach to reflections to a subject other than water.  Okay, I do paint a lot of water.  :)