Definitely blue and sepia. It's lighter on the eyes. I have to say looking at it reminded me of this very famous map (I think someone used it as a model recently, here at the guild, but I can't recall who or when). Although, actually, looking at it again... it isn't a "caterpillar" map and the color scheme isn't at all similar.

Still, a quick note for thought. I think "caterpillar maps" are prior to the age of color prints.

Having said this, your green/gold version was just about right colorful and a pleasure to look at.