Wow. I know that some Roberto Coin pieces have been strikingly similar to other designers in the past... but these pieces are too much like a cheap copy of VCA Sweets for my liking. Thankfully, I don't wear enamel because I've found that it doesn't hold up well at all for daily wear.
And I agree with AntiqueShopper about the Elsa Peretti Open Heart style pendant. It's too much like the Tiffany & Co. product.
If RC can't come up with their own designs... perhaps they should consider hiring outside designers? There are so many bright minds with fabulous jewelry ideas, but those designers either don't have the funding for a start-up or are otherwise unable to manufacture and market their pieces. Why not put those talented people to good use?!
I understand that jewelry brands borrow concepts from each other depending on what is popular and "in" at the moment, but... there's a difference between manufacturing a "style" and copyright infringement.