There are actually 6 blue positions shown.
1 for the humerus
2 for the radius/ulna
1 for metacarpal 4
2 for the wing finger (one is fully folded in hyperextension and points back toward the shoulder)
The blue positions just illustrate range of motion of the articulations (some are terrestrial and have nothing to do with flight).
You can raise the head level if you use the swan-like neck positioning (which I would)
The animals landed in a near vertical position, took a couple of stutter steps with their hind limbs as they were folding their wings into terrestrial position, then dropped their front legs on the ground and walked away quadrupedally.