There is a large tree that is standing in the middle of a field

Foreground Tree: A large and majestic tree, with detailed and bright leaves. You can use deep green colors for the leaves and warm browns for the trunk.Environment: The background could be a desolate or polluted landscape, with gray or cloudy skies, to contrast with the freshness of the tree.Breathing Effect: Add a subtle effect of steam or air coming out of the tree. This could be represented with soft, translucent lines that appear to flow from the foliage.Additional Details: You can include symbolic elements such as clouds of clean air around the tree or small animals breathing the clean air to emphasize the importance of the tree in the ecosystem.This image would convey the idea of a tree as a vital symbol of nature and the struggle for the preservation of clean air.