Font and Color choices on Full-Page backgrounds [migrated]

I am an amateur web developer, and am teaching myself React. Currently, I have been building a personal website hosted on github pages -

https://roy-05.github.io/website/#/

As I want to complete the mobile design first, please switch over to mobile view (iPhone 6/7/8) in devTools -

Q) As you can see the text is not really appealing or "eye-catching". What kind of design choices do more experienced people like yourselves go through in choosing the right font/style, and colors to make the page vibrant and aesthetic against a colored background?

Please do not hesitate to criticize and highlight the site's shortcomings.

Edit: Added requested images-

https://drive.google.com/open?id=1BYDGJu75OO61f1W6yGZXb2zHpK6YGm6L