Little clouds

Analysis of the solution one of the puzzles - thank you @Meduzia
https://en.grandgames.net/post/432380

The first time to solve such puzzle. Stuck at first because did not read in the rules that 2 cells and greater than the thickness of the cloud on each side must be, had to be solved again from scratch. And 4 stage did not meet because of the unknown of the box (when did you deliver? why not removed? ), then I realized it was a clue. In General, the time for gold comfortable even for those who have not decided "clouds".
Nice easy mission for beginners, thank you