Basic Design principles
Interface: A clean, neat and tidy interface.
Navigation: The website must be easy to navigate, meaning it must be easy to find the information you need. Have you ever been onto a website where its like moving through a maze. You click on one link that redirects to another page, then click on a link that redirects to another page. You still have not found what you need and you need to hit the back bar. You become impatient and leave the website.
Media Quality: The quality of photos must be optimized for the web. This is also essential as a reflection of what your service or product is about. If you cant even use good quality photos what kind of service or product will you provide.
Use of Colour: Many people have eye problems. Have you ever looked at a button that is a particular colour and the text is almost the same colour. You need to strain your eyes to try and read the text.
Speed: It must load quickly- 5sec or less. To check website speed visit Gtmetrix
Title and content Description: It must be easy for a visitor to understand what you offer. This will also help with SEO.
Optimization: Your website must be optimized for a computer, ipad and mobile.