Try taking a single word or theme (Frustration, Passion, Loss, Beauty, etc.) and paint, draw, sculpt something that embodies that word. What colors, textures, patterns, images would you incorporate? Would you use a heavy or light hand? Can you write a sentence that captures and moves the reader to feel/see/know that theme without using the word in the sentence? Can you describe the theme in a paragraph? Maybe find a poem or a scene from a book and create that in picture form.
Here is a poem I really like: https://www.poetryfoundation.org/poems/44272/the-road-not-taken
How about going the other way?
Find a painting, drawing, sculpture that is interesting. What is it that is interesting? What does it evoke from you? What does it make you think of or how does it make you feel? Write a page describing the image. Narrow down and write just a paragraph. Can you capture the essential feeling in a singe sentence? If you had to choose a single word as the theme of the image, what would that word be?
Here is a picture I happen to really like:
Wards and art go hand-in-hand. In fact, words are literally just another form of art. If you like calligraphy, words can BECOME art. Here is a calligraphic example and a graffiti example: