In the center of the picture is a man sitting (Pakal), bending forward
[1]. He has a mask on his nose, which is said to help him breathe[2],
and he uses his two hands to manipulate some controls [3], and the
heel of his left foot is on a kind of pedal with different adjustments
[4]. The rear portion is separated from him; he is sitting on a
chair/seat which seems to have an array of complicated objects, and
outside of this whole frame, you see a little flame like an exhaust [5].