How to paint a sunset with palm trees in watercolor, by Mr. Otter Art Studio. This is a great beginners tutorial for watercolor. No fancy supplies necessary, just your watercolors a brush (preferable a flat brush), water, paper and a black marker (optional). Learn how to use red yellow and blue to create a vibrant sunset with silhouettes of palm trees in front of it. You can add any silhouettes you would like to this painting, not just palm trees. Enjoy!