Writer's block is a commonly known concept. Personally, I don’t suffer from debilitating writer’s block (apologies to writer friends who do). Writing comes easily for me, whether good or bad (that can be decided later). For me, it’s illustrator’s block that plagues my creativity.
Here’s a peek at the colors I considered for the lead characters in "The Can-Do Karate Kid." The boy, Makoto, is the protagonist. The slug monster is named Laziness. And the snail monster is Procrastination in the book.