Here are some e-book cover mockups I designed. One of my main considerations while designing was ensuring appropriate color contrast and visible text. The book covers were used and published on Amazon, Okadabooks and Paystack store with over 180 downloads just from these platforms.  

I designed several online courses and engaged with colourful elements and text to increase learners engagement with course, you can find some of the courses published on udemy taken by over one thousand students with great reviews 

You can checkout several other creative designs that faciltated significant value and business objectives from other works and projects below