Etsy Contemplations

So I've had some friends ask me to make them jewelry. Etsy seems to be a popular site for selling handmade items and I'm thinking about setting up a little store! It's so easy and inexpensive to make your own jewelry! Hopefully I will have extra time over summer for beading and I would love to share my designs! Here are the pieces I get the most compliments on, let me know what you think!

My favorite piece was lost just a little while ago :( But I think I am going to buy another one of the stones and recreate it this weekend! I'll keep posting photos of new styles, I'd love your feedback.
I also have three amethyst crystals like the quartz one pictured. Anyone have an idea how to incorporate all three in one piece?