I was actually just contemplating the idea of carrying a different designer wallet in my bag. Would people look at me funny? lol I think it'll be fine. You should get what makes you happy and ebene is a gorgeous print to have. If you're unsure take a visit to the store and hold them together and see how you feel about it before you decide.
I mix and match all my designer and non designer goods. I have a mono wallet that I use in my ebene eva and my azur speedy. I personally prefer all my slg's to be in mono but that's just me. I will use my Burberry, Pucci or Coach wallets with my LV's and when I need a teeny wallet for my eva, I use a Danier wallet. As others have said, buy what makes you happy
I usually match my bag (when possible) and wallet. I love how that looks.
I also notice i use those bags more , because I have that matching wallet.
Maybe I should get a mono print. Is the zippy compact too small?
I really like a variety of styles and even brands inside my bag. It's more interesting and makes finding things much, much easier. It also allows me to enjoy an item in a certain style/pattern that I wouldn't normally choose for a handbag. So I say go for the damier. Good luck deciding.
My only LVs are a Speedy and ZCP, both in ebene. I use the ZCP as my every day wallet, in all of my bags regardless of brand. I personally wouldn't buy a mono bag because I'm afraid of the vachetta, but I would buy mono SLGs (I actually was intending to, but the mono ZCP was sold out so I bought ebene). I'm planning to buy a key pouch (when I get around to going) and I want mono if it's available, just to not be too matchy-matchy.