Sorry, but terrible. You have all your storages easily accessible behind one wall. A couple of wall breakers, a goblin rush with some distracting barbs/archers/giants and you have nothing left. Even your spring traps which you could get lucky with are all on one side of the storages making it easy to figure out which side to attack from (upper left).
Read some of the base design threads to get a better understanding of how to design a base. There's one stickied at the top of this sub forum:
