Who was Van Gogh writing when he wrote : " It is a kind of painting that rather changes in character , and takes on a richness the longer you look at it . " ?
There was the great difficulty of keeping it clear , and of getting space between the trunks standing at different distances - and the place and relative bulk of those trunks change with the perspective - to make it so that one can breathe and walk around in it , and to make you smell the fragrance of the wood .