Just got a new kitchen countertop installed, looks great, but during the fitting some existing faults with the build became obvious. Specifically, there is now a large gap between the countertop and the wall. The wall starts off perfect from the corner, which is 90 degrees, as it should be, then continues straight for the first 3 tiles, but after that the angle of the wall changes, which means the gap starts small and gets much bigger as it reaches the end of the countertop. So the wall is not straight, but more curved.
The biggest gap between the tile and the countertop is about 1cm, but right at the end it's about 2cm - difficult to measure due to the large opening where I used to have a tall refrigerator.
What are my options to cover this? I was considering an upstand, but I'm afraid that it won't be flexible enough - if I align the upstand with the first 3 tiles (or the rest of them), there will still be a gap on one side. Perhaps something like a scotia, used for a similar purpose when covering the gap between a floor and the wall? Ideally whatever option I go with should not interfere (and should look good) with me trying to cover up the large space between the countertop and the wall on the right side afterwards.
The biggest gap between the tile and the countertop is about 1cm, but right at the end it's about 2cm - difficult to measure due to the large opening where I used to have a tall refrigerator.
What are my options to cover this? I was considering an upstand, but I'm afraid that it won't be flexible enough - if I align the upstand with the first 3 tiles (or the rest of them), there will still be a gap on one side. Perhaps something like a scotia, used for a similar purpose when covering the gap between a floor and the wall? Ideally whatever option I go with should not interfere (and should look good) with me trying to cover up the large space between the countertop and the wall on the right side afterwards.

