Bravo to all these amazing creative minds. I hate wasting stuff that still has life in it. By the way, though I have read that some pallets are treated with a fumigant which is toxic. Generally, make sure pallets are stamped with “HT”, which means they haven’t been exposed to chemicals (at least not in the treating process.) Avoid unmarked pallets or those with “MB” for methyl bromide. Well, if anyone wants some really nice, bargain 2nd hand windows we just pulled out of our 12 y-o house to make way for a sliding door, and you live around Melbourne Australia, please check them out here: http://www.ebay.com.au/itm/112070272414?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1586.l2649

I agree Luke, an image would help, but in the absence of a visual, perhaps you could look at a rough quartz style stone cladding. This would add light, contrast and coolness to the space. Something like this image attached

I'm not 100% sure what you're asking, but if you're looking for suggestions whether to make the lower cabinets grey and the upper cabinets white or vice versa, then I would be tempted to make the lower cabinets grey. I think this would help to make the ceiling feel higher and the overall space larger and brighter. But, it may depend upon what style you're going for, whether you have an island benchtop and, if so, what material/colour will be on the rear/exposed side of the island benchtop, the amount of natural lighting, etc. You can easily search through Houzz photos by room, size, colour, materials, etc. Here are a few examples I found from a quick search which may help:

Hey annemarie, thanks for the visual. Firstly, I think the pale olive trims complement the vanity unit in a way I don't think the black, grey or white could. The vanity doors and basin are subtly highlighted and it produces a very calming, aesthetically pleasing showpiece. The olive colour helps make the vanity doors and basin the standout features of this particular model - the reason you were attracted to it in the first place. Secondly, I think the colour palette works well with the Moroccan tiles you have chosen. The darker trim contained within each tile piece helps with the fusion. Do not interfere with the integrity of the vanity unit. It looks great as. Overall, you get a fantastic vanity unit - you have chosen well.