I love it and think it will look great in your bathroom. I think the black and white leaves kind of echo the lines of the white tiles, while the reds will pick up the reddish tile, and the turquoise gives it a nice pop of complementary color.
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"Fashion can be bought. Style one must possess." ~ Edna Woolman Chase
I would only do it if the red colors in the curtain go with the tile. If it doesn't match I'm afraid it's not going to look intentional. Personally the curtain 'reads' as a lot of brown, which wouldn't be good, but I like it, aesthetically speaking.