Need help with shell script.

Using Linux Mint

My wife downloads photos from her camera and leaves them in the "Desktop"
directory.

I put them where they belong (from a terminal) w/ 
mv ~/Desktop/*JPG ~/Desktop/Beckys_stuff/
mv ~/Desktop/*PDF ~/Desktop/Beckys_stuff/

where Beckys_stuff is a directory 

so I thought I'd make a clickable icon on the Desktop to make it easy for
her.
the file "move_pictures" contains:
!/bin/bash,
mv ~/Desktop/*JPG ~/Desktop/Beckys_stuff/
mv ~/Desktop/*PDF ~/Desktop/Beckys_stuff/

I saved it in my 'scripts' directory and and did "chmod +x move_pictures"

I then created a new launcher on the desktop with the command field filled
in as: ~/scripts/move_pictures

But when I click on it I get an error messaage that pops up in a small
window that says: "There was an error launching the application"

Every variation I've tried (like removing the !/bin/bash shebang) has led to
the same message.

What am I doing wrong?

pH in Aptos