I'm fond of Watercolour World: https://www.watercolourworld.org/
Viewing post in Resources and Assets for Creators
Thanks! I looked at the site and discovered they're claiming some images are licensed that are explicitly in the public domain in most parts of the world, and they've blocked right-clicking to copy or download. How have you been using them? I'm glad to include them but wanted to make sure I wasn't missing anything about their site or functionality.