The One Punch web comic can be considered somewhat canonical. It generally adheres to the core concepts and character developments, but there may be artistic liberties taken for visual or narrative purposes.
Sure! If a web comic becomes really popular, you can earn from it. You could get paid for ads on the site, sell related products, or even get publishing deals.
First, you need to have a story idea. Then, if you're not good at drawing, you can collaborate with an artist or use digital art tools to create the visual elements for your comic. For the web part, you can choose a platform like Webtoon or Tapas to publish your work. Write out the script for each page or panel clearly, and make sure the text and art blend well to tell the story.
The comparison depends on a lot of factors. In some cases, the web comic anime retains the core elements of the original, but might change the order of events or add some new details for visual appeal. However, in other instances, it could deviate significantly to make the story more suitable for animation.