Create an image of a majestic lion wearing a crown and holding a paintbrush, reenacting a historical royal portrait in a whimsical and colorful style.

In a whimsical and colorful style, create an image of a majestic lion. The lion is wearing a regal crown and has a paintbrush clenched between its teeth. He strikes a pose reminiscent of historical royal portraits. The vibrant colors bring a touch of fun to the typically serious royal portrait genre.