When writers ask how long their stories can be, it is never about whether they should be shorter. I have never met a writer who wanted his or her story to be shorter. Rather, writers typically believe that their story has to be longer because the tale needs room to breathe. Besides, there is so much terrific writing coming and it would be a literary sin to cut so much as a word.
True that: “A Gatsby of The Gambia” = captivating writing and a terrific read.