Even though I think most of those look great (other than the Vince sweater, which seems to be choking you), I vote for sell all. If you aren't in love with them anymore, then why hold on to them? I noticed that your question wasn't "I love these, but I'm not thinking of fresh ways to style them." It was "should these go?" They should go.

BTW, love the styling of grey and orange. I'm blonde like you, so I love grey. It took me a really long time to realize how great grey looks with orange, lighter greens and yellow. Your mix of grey and orange looks fantastic.