This is an example of typical TYPO3 website. The development steps are the following:
Getting the customers task details and wishes.
Creating website design (as usual in PSD format) for all pages
HTML layout creation from PSD. It is always responsive layout, created using modern libraries and plugins (Bootstrap, jQuery and other).
HTML template integration to TYPO3 CMS. Menu creation using TypoScript. Pages creation. All website content is controled from back-en - it allows user to manage his website easy. Languages implementation, if they are greater then one.
Extensions development if it needs.
Speed and SEO optimization. Images, css and js compression. Meta tags implementation.