I am a jeweller, but I am very very picky... Here's my tuppence worth anyway.
The first one, its very 1990's. the designs look very much like a large commercial silver company that we used a lot. It all depends on the price point but I fear they are asking too much for what they are selling.
Similarly the second one, while being more interesting and technically superior, their designs almost look like they have been lifted from Pilgrim's website. I have also seen similar charm bracelets with acorns etc in the likes of top shop.
I'd be tempted to order a few items to gauge interest but I wouldn't be confident that it would sell easily.
The 3rd makes me want to gag. Sorry. I am all for natural form but there's some natural things that don't lend themselves to jewellery well.