The art is great, the use of sound for humour is great. A collection of mini-games in this style would be really cool. Like, a watercolour WarioWare.
My one complaint would be that the "Main menu" button was located roughly in the area where I would be clicking, so I kept accidentally going back to the menu.
However this allowed me to discover mashing the Play button replays the audio, which was funny.
Good job on this, keep doing your thing.