nice work with the shadow, but i would take off the sand wich ae out of the box.
Could you extend canvas L to include all of that cutoff figure, and soften the L edge of dust cloud. Direction and perspective of shadows is good but I think they shd be sharper, esp near the feet.
The shadows are a bit too blurry and are too long. The light on their clothing tells me the sun is more over-head, which would make their casted shadows shorter.