Maybe move the log-in page after step 2, seems more natural as it's the last step before seeing the results. Was a bit confused with the style component. It only changes the text font and not the style of the website. Either specify it's changing font only or generate different templates when a person selects a different style (playful, simple etc) :)

Also given your generate the template once I would show again the color/font changes to step 3 so users can interact with the page style after it's generated.

Makes the experience more engaging !