I can't help you with your exact thesis, as I do not know your preferences for it, but your thesis would be what the main point of the paragraph or what it is about. Make sure both your first sentence is stating your thesis and the first sentence of your last paragraph is restating your thesis (if it is only 1 paragraph, restate your thesis at the end).
Answer:
Yeah, thats true. There is beauty on a tree. U-U
