Love the boots with all the pants outfits for reasons mentioned by others (including bookending your hair)!
For work, I think the tucked-in pants and some of the skirt looks are a "know your office" thing; I love that cognac leather jacket on you with the boots + pants but depending on how conservative your workplace is you may cause a few eyebrows to raise. On your own time, though...fun!
In general, I prefer the knee-length skirt(s) to the longer ones with these boots, but the all-black look is pretty great too.
Hope they end up being wearable for you as they seem like a great way to add what you're looking for to your usual style!