Did you try the Bathrooms forum? Or perhaps Home Decorating.

houzz has been having issues w/pics. you may have to resize, or, try loading them here in comments. wait for them to fully upload (from gray to clear) and then hit submit

I can only speak to the vanity but I searched high and low for a floating, storage-filled vanity that had a clean modern look like the porcelanosa one you linked above. I looked EVERYWHERE. Pickings were extremely slim, and when I did find something I was "ok" with (I didn't LOVE it) - it was super pricey, lacked storage, etc. So far I think Godmorgon is the best bang for the buck. I would encourage you to at least go and look at one and test it out. The one thing I really like about the Godmorgon that i haven't found in another vanity is that all four drawers are full depth, ther's no reduction in storage to get around plumbing.

hard to tell if that travertine leans more yellow or more taupe. you'll have to get samples and see how they look. (I'd stay away from anything yellow or golden toned) I like a nice black and white palette, w/some accent colors. you have great light in there. bring in some green plants. hang them or put them on shelves. You also have that great wall above tub. do something with it! if you do the doors dark like this, bring in the white walls, black and white accents. you could do soft gray blues, or gray greens, soft sage tones, soft whites,