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Feedback on new art cards please!

I've been playing with this optical collage technique. It's a figure ground reversal image and I'm creating them as ACEO's. I need some feedback and am wondering if you feel I should try them in my ETSY jewelry shop, lynettefast.etsy.com, or should I open a second shop. I also have some quirky little sculptures to come, probably next summer as I have more time to play.
So, do you think I should try these in my jewelry shop for now and then open another store next summer as I add other items? For those of you with more than one shop, is it worth running two shops on ETSY right now?