Oh, that's too bad, but like I mentioned it was really about the process of gathering information more than anything specific about that type of work. She encouraged people to go out into the real world whenever possible--like visiting a horse farm to sketch and take photos, instead of just googling horse pictures. She also spends time making lists of everything having to do with a subject before she starts drawing.
One thing she talked about that was specific to surface design is practicing making collections of images or patterns that go well together (for things like coordinating fabrics, stationary items, etc.) I think she said something about having bolder or larger patterns/images as well as simple ones. For example, you'd have more involved designs that could be used on items like cards, and a smaller patterns that could be on things like a pencil or pen for the same set.
I'm happy that I was at least able to help you find another artist in this area of illustration, especially since you like her work. She does have a nice style!