Like everybody said, the first and last photos look fine to me. Hanne Popow is a notorious climber. Each growth will be about an inch higher than the previous. A few paphs will do that as well. Also, the vertical height of growths may vary considerably according to the stance of the leaves, even in the same plant. i.e. a plant that produces a growth with low-lying horizontal leaves may put forth additional growths with a more upright habit.