I would go for the mono, even tho I am not a fan of mono at all, huge love to epi and most of my Louis bags are epi, and also I know mono NF is super common, but I still vote for mono. Because It’s light, hard wearing, shape is more flexible than epi, and the color is easier to go with outfit IMO. I have a sunrise petite Noe, I believe it’s smaller than your NF, it’s already an attention grabbing(not always in a good way but I could care less coz it’s my favorite color and I am surrounded in a design environment, “shocking” appearance is our identity(jokes). However only you know your own situation better than anyone here, if you like the epi, rock it like nobody’s business!