Create a whimsical birthday illustration that features a black cat with a joyous expression, wearing a jaunty feathered cap and playing a lute. Surrounding the cat, there's a medieval-themed birthday celebration, including banners, balloons decorated with ancient runes, and a cake that is shaped like a castle. The cake is placed atop a table that is festively adorned. The color palette of the image should be vibrant in order to enhance the festive and historical ambiance.

Generated with these themes: Black cat, and Medieval music.

Made with ❤️ by AI.