Fit piece correctly

Hi, I'm pretty new to construct, I wanted the piece to fit on the board and if it doesn't fit correctly, return the piece to its initial position... And once all the pieces are placed correctly, a completion message appears... It seems easy but I can't do it :(

Any example that someone can give me? Thanks

My version, with piece rotation and piece hovering allowed:

I pay money for it

I am going to charge you only $1,000,000

Just kidding. It's a gift. Here it is: drive.google.com/file/d/1igUgYI5vyz4IlcVJhc0zSlyaFBHnGYTy/view

Game improved. More types of pieces:

The game is now more challenging, fun and interesting. Can you complete the level?

Play it here: construct.net/en/free-online-games/puzzle-game-72019/play

I'm trying to create different pieces and there's no way to make them fit...desperation...

the purple piece for example, what are the measurements?

Download the improved version and try it again: drive.google.com/file/d/1igUgYI5vyz4IlcVJhc0zSlyaFBHnGYTy/view

All the pieces are made with imaginary squares of 80x80 pixels: