Balck and white horse t-shirt

As of my last update in January 2022, I don't have specific information about a colouring book titled "Solar Pegasus - 23" or the detailed image you're referring to. It's possible that this product or creation was released or became known after my last update. To get accurate and up-to-date information about the title and description of "Solar Pegasus - 23" colouring book or the associated detailed image, I recommend checking online retailers, bookstores, or the official website of the creator or publisher. You can also perform an online search for the specific details you mentioned. If you have more details or context about the colouring book or image, you may want to provide additional information, and I'll do my best to help with the information available up to my last update.