Mumbo was an interesting one because I was determined to pick a brand that wasn't just a designer brand that happened to make suits, but specifically a suiting and menswear brand itself. I actually didn't know many, but once I did some research Brioni came up and I went with that!
There are a lot of small intricacies in mens tailoring that are super interesting - the weight and weave of the wool, the cotton weave of the shirt, and the details of the sock or the tie and pocket square are all so important and make a huge difference in the final look and presentation. If you're not familiar with menswear, I suggest you look into tailoring and learn a bit about it, even if it seems boring. Doing beautiful tailoring on the human form is an art form, and hard to capture in stylized illustration like this!