Landing Pages Lifeified

I am currently in the process of starting a blog helping Creative’s learn how to do business. A graphic designer has designed my landing page. But when I use Convertkit it won’t allow me to NOT use one of their templates.

So I need someone to help me create this from scratch. Again have exactly how I want it to look. The design has been done in Canva but can’t figure out how to create this in Convertkit. So I need help!