That was a first test, many people complained the effect was way too strong. However, to really get the effect, you should put your time at late afternoon or early morning, so the sun hits the ground at a low angle, then rotate the view around the airplane, and it will be very easy to see.
PS: the park me boxes you get fixed?
I don't understand what do you mean with this: your parking screenshot shows a perfectly fine optical alignement box, that's how is supposed to look like. If you want a better docking system, go to a parking with the SafeDock3, which is way more advanced.