I've always felt that my 2014 Lexus IS350 F-Sport does a poor job of illuminating the road ahead but ignored it assuming that it was more due to the car's low ride height than anything else.
However, in a parking lot today I had the opportunity to see the overall beam pattern on a wall with horizontal lines for reference. This is with the car about 4-5 m away from the wall, parked on a level, horizontal ground.
The picture shows the left side beam is pointed slightly lower than the right side. The difference in height is roughly 15 cm (6 in).
I know that it's normal for car headlights to have a diagonal pattern to them to avoid dazzling oncoming traffic, and these are visible in the photo as well.
But is it normal for one headlight to point lower than the other?
This is a LHD vehicle (we drive on the right side of the road, like the US).
An additional datum point
My friend has a 2015 IS350. This is what his car's beam pattern looks like with the car in the same parking spot.