As a graphic designer for 14 years, I have created 1,000’s of images for my clients. Course images need to be both dynamic and also effectively communicate your course subject matter.
You also need to produce a clean image that communicates a sense of professionalism. Using more than three images may overwhelm the viewer especially when course thumbnails are viewed no larger than 200x100 pixels at times.
I like to create a course image and then zoom out, so I can see how effective it is as a small thumbnail. Can I see any course icons, logos? Is the background graphic or photo effective or not too busy? Are there any elements that seem unnecessary?
Text is not allowed on cover images, so make sure you use icons, logos or symbols effectively, but using only the ones that are absolutely necessary to tell the story of your course subject matter.
out among heavy competition .
Also remember to think about the course tags (best seller, new, hot and new) when creating your course images, everyone gets a tag at some point (new tag) so do not put anything that cannot afford to be covered up in that upper left area.