If you changed your business model you would be going from Hourly Design Consulting for pay, to something like Selling predesigned websites.
Or offering self service design.
AirBNB changed the "hotel" business model because it went from B2C to C2C.
Tesla changed the Car business model from Franchisee to Consumer to "Direct to consumer".
Several Design studios, and stock photo companies changed their business model from "Design once sell once" to "Design once sell many" but all you did was change your pricing model.
You are both likable and the blog post is well written but the title is not at all accurate.
You offered creative design consultancy before, you offer creative design consultancy now and you have added two additional products.
You remain in the same vertical, selling the same skillset, albeit packaged slightly more accessibly.