Most of my exotics are loafers, with the exception of my Mezlan cap toe oxfords.
I find that the Moscoloni's fit me like a glove, and are an inexpensive way to get into exotics (I have 6 pair).
I am too traditional to wear an exotic skin shoe with a suit. I have however worn them with slacks and a sport coat, sans tie. And, of course, they go great with jeans or other casual clothing.
I do wear exotic skin belts with suits at times, but match the shade of the belt to the shade of the calf skin shoes.