M.C. Escher, Waterfall

Optimago (probably), 410 pieces. Doesn't say so on the box, but the style and the linen bag in the box are fairly classic Optimago style, so I'm attributing it to Optimago. I love Escher and enjoy Optimago's simplicity, so I snatched this one up when I saw it on eBay, and it is exactly as I expected: challenging based on the limited colors, and a fun Escher result. 4/5 (for an Optimago fan)