I think skiwear is where you can go a bit ott with colour and pattern. Unless you’re at a more upmarket resort (where clothing is more fashionable), people wear all sorts of bright colours and patterns. I had a similar one to this in the mid-90s as a child and loved it! I’m not such a fan of all in ones now as I find them too awkward.
I don’t think you’ll look like a dick (or cool!), if you like it go for it!