Wow, what a stash! OK, here is my personal take on your items.
Esprit black jumper. I like it and I can see what you mean about it looking comfy! I do think to my eye the longer sleeves look a little funny with the black though (like the jumper may have shrunk in the wash, which of course it hasn't!) so I'd like to see them rolled up, so that it touches the hem of the jumper. Or maybe I'm just an old fuddy duddy. Who knows?!
4-6 Ezibuy. Oh, I really like this! And I love how you've styled it with the scarf. No, I don't see any shoulder issues. Keep, keep keep and wear, wear, wear!
7-11 Grey cardi. Being honest here, but it just isn't really grabbing me. I do like the sillhouette of 8, but then I don't like the way it is shortened so in 10 it is quite high up. I would be interested to see it with the cardigan unbottoned (as in 11) and unbelted with how high it is at the back in that instance. Maybe try the Halogen? In terms of colour, you are a brunette, aren't you? I think that would look quite nice. It would go with your Esprit top as well and your jeans, so you could work it into your wardrobe immediately. Hope that this helps just a little!