Artefacts can clearly be seen in the picture. Rock carvings of dogs, a lion, a humanoid head a deer head, a pair of shoes, fossilised humanoid type bone and fossilised child's foot.
The scene gives us an insight into Martian culture.
I imagine this scene could be of what was the garden of a stonemason where he worked and displayed his goods.
His children played there sometimes barefoot just leaving their shoes lying on the ground. They played with their own pets and some of their fathers carvings.
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source and credits: Michael Witter