Mystery Hidden Letters

A little hint for IMAGE 2: Look for the Q in the middle of the laptop, the X is at the bottom left of the monitor (PC), and the M is in the middle window, on the left blind, slightly higher up—it’s hard to find, so that’s why I’m writing a quick hint for IMAGE 3- N is under the boat (in the sand), Y is on the boat, also in the sand, to the right a short distance from the palm tree, and J is a short distance from the barrel (at the bottom) in the sand ;-)

Normal Game

IMAGE 3—Someone stole the letter H from us. Has anyone found it? Thanks for your help.