I will chip in too.
I like the jacket as styled in 1-4 very much!
The blue button-down, I'm not really a great fan of. If you would change the boots for booties in a low-contrast color to the jeans, it would maybe get a "YAY" from me too. As-is there's too many colors for my mainly colorless persona.
The boots are also the problem for me 6-8. After seeing some combos combining reds and pinks (and red and burgundy from lovely Ingunn here), I gladly welcomed your pairing of plumb skirt and pink blazer. If you swap these mocha boots for... nude shoes (maybe?), it has potential to become a YAY too.
Hm...after all these considerations, I guess I must add I recommend you return the boots. I like mocha, but if you plan on making them your go-to shoes, it doesn't seem like it is working... (or maybe it is for other combos? Hm... not much help here, ham?! Sorry!)