Need your opinion about this writing

'His style seems to be inspired directly by the natural world which he paints. He is able to capture the serene beauty of the forest, as well as the liveliness ['MOTION' IS REDUNDANT] of the creatures which dwell in it. He paints almost casually, but the simplicity of his strokes unveils a world as detailed and mysterious as our own.' [THE UNDERLINED IS NOT MEANINGFUL. MY WOR

Your sharp eye has caught 3 mistakes.
As for "our own is a mysterious thing", take a look at HOW BRAINS THINK by William H. Calvin, of UNIVERSITY OF WASHINGTON:

Human consciousness is just about the last surviving mystery. A mystery is a phenomenon that people don't know how to think about -- yet. There have been other great mysteries: the mystery of the origin of the

That's a very interesting reference, Jobb, but you should not expect your reader to identify a philosophy of the human consciousness with your reference to 'our own' in your sentence about the artist. As it stands, it leaves the reader a little non-plussed as to what the writer means.