I can see in this pic that your screen is a bit higher and the dash is angled back so you are kind of looking up at it or directly at it. I think this is right at the limit for that angle. You could slide down in the seat and it would still look fine, but if you lean over and look slighlty down it will get screwy looking.
Here is a pic of a TA with a home built, pieced together screen in the dash location. You can see that for it to look factory it can't be leaned back. In comparison to your car, this location causes you to look slightly down at the screen.
The left and right angles are fine as long as the vertical angle is OK, but when it's not, the left and right create an inverse looking image.
The link I put in post #53 shows the viewing angle: 45/60(U/D). Wouldn't this indicate that it is biased to look better more from the bottom angles and less from the top? I don't know if any of these specs are accurate. I suspect they sometimes fudge the truth to make the screens more appealing.