The basic of the game is already created. I just need to put in appropriate graphics, and it's ready for delivery to you.
I've been using Game Maker for 5+ years, with best knowledge in GML, and currently do tutorials on YouTube on how to create games and transitions. One of my current series is on re-creating Pacman.
I use version v1.4.1568 of Game Maker: Studio. The creation of the game won't take any more than a couple of days, and the last one, I will use to design it towards how you want it to look.