I know what you mean! I wish I could find more work- worthy winter items in some brighter colors. Sweaters and scarves are mostly it.
I love your choices. I may be a spanner, but I can see you might have to make some tough choices IF you are sensitive to how colors mix, OR look at a few new options that combine better, if your " eye" tells you so. For example , "blues" and " reds" go together, but some will go better together than others with your coloring and wardrobe items. So there might be a shade of turquoise handbag or texture that goes better with bright coral. Or , start with the one blazer that lights up your face colors and makes your heart sing most, and build from there. The scarves are gorgeous, but there are a lot of scarf options, so 2 ideas: there may be a scarf print that mixes your color opposites and ties things together, or, you might pick blazer and handbag that you know will work well with a lot of outfits, and add some other colors with a less expensive scarf or 2 and use your neutrals as a backdrop.