Create a visually rich collage that explores the theme of '1'. The collage should be filled with varied interpretation of the concept '1' such as solitary objects like a single tree in a field, a lone bird flying in the sky, a single drop of rain falling from a leaf, a solitary person reading a book, a lone ship on a vast sea, and the numeral '1' in different languages scribbled subtly in the background. Imagery should include both natural and manmade elements and the overall tone should be serene and thoughtful.