Ideas I have

Hi, I've been very confused lately with some ideas for animations and YTPMV, so I came here to ask for your opinions on which idea I execute first and maybe get some other cool ideas to do.

1- Super Osaka Bros (YTPMV)

This would be a video in which I make Osaka from Azumanga Daioh play some songs from Super Mario Bros.

2- The Mirror (Animation)

It would be an animation about a magic mirror, I don't know how to execute this idea, if it's going to be an adventure animation, a kind of non-sense animation, I don't know.

3-Cats (Animation)

I've always wanted to make an animation about cats. It would also be good for me to learn how to draw cats and how to animate them.

So what did you think?