Love blue tiles. Depending on how much sun and how hot your pool gets in the summer should dictate what color it is. We live in Arizona, so cool blues work best. Our neighbor has brown tile and a dark pebble tech pool. Looks like a swimming hole and gets really hot - 94% water in the summer. They obviously didn't think it through.

Excuse my duh-ness but i'm having difficulty trying to follow whats going on here. Are these two photos an exact replica of your house and pool ? If not a hasty sketch with dimensions could help a lot. By kitchen wall do you mean the wall behind the bar ? And where is the pool wall ? Are you considering the covered area as being "inside" ? Sorry for all those questions lol Sometimes when you have a design problem you need to turn it inside out or on it's head. If you can't beat it maybe embrace it by making a feature of it : i.e. contrast by having the lightest colored pool surround and a great blue or tile inside and under the overhang, something that will echo the water color ? If you have a great covered area as in photo you'll most likely be spending a lot of time there and it could be soothing to be able to sometimes retire into a darker inside. In my book, 10M isn't small and also contrasting two floor colors doesn't necessarily make a space seem smaller and confined and may in fact even open it up. Could it be that you've thought yourself into a box here ? Sometimes one needs to give it all a good shake up and see how it resettles.

If vertically fits perfectly then I would probably do that. As it's a feature wall and the others are in a standard subway pattern I'm sure it would still look good, as, in my opinion, the less cuts and grout in a shower situation the better.

My line of thought is remove; shower tray, shower panel/door, make bath frame, add drop in bath, jib/tile around bath frame. can the existing drain be used for the plug and can we just add a tap for th bath? Would just have a shower curtain. Just looking for the simplest way to add a bath to the existing shower set up. Exceptional drawing below: Measurements from left to right: 1780mm width of existing shower: 870mm