What? An invite to shop without having to make decisions or pay choices? Woohoo!
But it's actually harder than I expected, because I really don't know you or your style at all, so these are more suggestions of general directions.
M Dutti has a ton of pretty tuxedo-ish blouses on their site; I chose this one at random, but you might want to check them out.
I think dark florals might also be a good choice in balancing out the boots. This is probably not the best source for that--maybe Free People would be better?
I just thought the eyelash sweater was pretty and that the power pink of the other sweater might be a good counterpart to the boots. Kkardds idea of a cami peeking out might work well with this one.
What about dresses? My favorite combat boots outfit ever was a black dress from Victoria's Secret, kind of shiny and sexy. I wore it with black tights and combat boots to great effect in the 90s. More recently, I've worn my red combat boots with a simple blue sweater dress. That seems to work well too.
Also, you might want to check "night out" or similar sections on your favorite shopping site. This is Nordstrom's. Some of the tops would be deadly cold, but could be paired with a blazer with interesting texture.
https://shop.nordstrom.com/c/d.....by%20Occas
ETA what about a schoolgirl gone bad kind of look, like the top with Peter Pan color?
You could also do a soft fluttery kimono over whatever else you have on to provide instant contrast to the boots.