SteP.

(effect of finishi.)
the background,use a gradually change make it like a space.

use pen tool delineate the crack,gradually change again.

depict the crack,make it stereoscopic.

make a setting sun,firstly do the gradually change write to red to orange.secondly a circle useed orange color from a point to edge.

all use pen tool do a person,

put it on the pic.

do a frame make the hole pic like a photo that mounted.

make the points which write CO2 around the person.
write :global warming like postmark.
plus a label and shadow .ok finished like the first pic.