artists develop ideas for their art by observing the world around them and finding part of it that they like and want to recreate in an art form. Going to new places and trying new things can inspire an artist. Content can be found in all places. It can be nature or the city. If you want to do art about something that you don't know a lot about, learning about the subject can bring new ideas. Putting oneself in the place that they want to make art about can help. If you want to make art about nature you should be in nature, go for a walk in the woods or sit in the yard.