A Pearly Preview! Feedback Wanted...

I have been busy these last 2 days photographing my Swarovski Crystal and Pearl Wedding Jewellery.  
These are my practice 'studio' shots, and the ones below are my practice 'themed' shots. 
These are not my final images as the light wasn't that great yesterday.
Can I ask for some feedback on which ones you prefer and why please?  
As a thank you for your time, I will enter all entries into a prize draw to receive a £10 voucher to spend at Hey Jules!