There is marble and then there is marble. With that wonderfully definitive statement out of the way... Source your marble, Know where it comes from. When you bottom feed on price, you can bottom feed on quality. The issue is that a bathroom shower will be demanding on a natural stone. You'll notice that some marbles look pure. They have nice white and gray tones to them, if that makes sense. You''ll see some with a yellow tone, or an occasional hint of orange. That can be in indication of iron within the marble. We all know that "rust" is iron oxide. And in a shower, a porous stone like marble, even if sealed, can wet the embedded iron and cause the stone to show orangish hues of oxidation or rust over time. Cararra, which is what you want to use, is known to have iron in it. So talk to the tile store you source it from. Some is fine, some not so fine. It's a natural material. Good marble has a tight grain. Some of the inexpensive marbles can be soft, then can pit easily, corners can break off. Some of these stones are resinated, or treated to increase their strength. The problem now is that in a shower these resinated stones can behave weirdly. They can show water differently. On a backsplash, use what you want. In a shower, you really need to be careful when you go bottom fishing on price. None of that is meant to scare you away. I's simply to make you aware. Hopefully it'll make you a smarter or savvier shopper. Since you are using marble, I highly recommend you look at using a topical membrane in your shower. That will prevent deep wetting in the shower pan and take some of the stress off of your marble. Look a Hydroban with their Laticrete flanged drain. Look at Kerdi with their flanged drain. I will gently nudge you towards either of those products. If you sway from the path, you may force me to get out my big stick. There are other topical membranes, but the key is the flanged drain. That's all for now!

Thank you! She's had fun reading your comments. :) ;D @ mtnrdredux. kyshine sent an email asking a few questions. The tub was ordered through Home Depot. The vanity was ordered through Vintage Tub & Bath. It was on sale at the time (always wait for sales!), of course it's not now. Thanks again for the compliments!

Wow - looks great! I'm slightly jealous - your Master Bath is only slightly smaller than my kitchen (14x22) ! Always ;-) Hunzi no big bathrooms in this 130yr old Victorian

Thank you everyone for your feedback! @benjesbride I guess I just wanted a roomy shower since it is a master. Also at its current layout there is only 2 ft on either side of the tub. So it's very tight in there. There is literally only 15 sq of tile on the floor...I seriously bang my leg on the tub getting to the toilet. So, while I could put a shower where the tub is, it would have to be a little 3x3 corner shower for space concerns. And that feels cheap for a master bath to me, anyways. Perhaps second only to the labor of moving the toilet, is the labor of getting the cinderella tub out.