Absolutely awesome tutorial as usual. I understand the fascination with Midjourney but I've been telling artists to take more control of the AI tools they use by working in Stable Diffusion.
The main reason is the ability to create more consistent characters and even train the AI to work in your unique style.
Midjourney is a fine hobbyist tool that can also work for professional projects, sure. But when it comes to building a workflow that offers unlimited possibilities, SD combined with Photoshop still offer the best outcomes in my book.
Cheers