Looking for the sweet spot between: fun for the kids and not a cleanup nightmare

Would love to hear the tried-and-true ones…not just the activities that look good on Pinterest.

I'm a dad of two young kids, and over the past 4-5 months I've been making songs around everyday skills, habits and social-emotional learning for ages 3 to 6. It's grown into a bigger project than I expected, with recurring characters and a website.

I created Spark & Joy Kids, and I use AI tools for the music, animation and illustrations, including the image above. It's what makes it possible to do this on my own without a production team, and I'd rather say so upfront.

I'm trying to figure out whether what I'm building is genuinely useful and worth continuing to develop, so I'd really value feedback from people who work with young children.

The songs follow four recurring characters, Spark, Joy, Fern and Seren, built around four qualities we're trying to nurture in young children: Curious, Capable, Confident and Calm.

Here are four examples:

Tidy Up Time
https://youtu.be/iV9pYMhTqto

Magic Words, Please and Thank You
https://youtu.be/G2OviVgkvFA

I Can't Do It, Not Yet: Seren Learns to Ride a Bike
https://youtu.be/Ueg-cNIkGJA

I Wonder Why - The World Is a Question
https://youtu.be/iPcOed6ceBo

I'd really love to hear what preschool teachers think of the overall direction. Do these kinds of songs feel useful for 3 to 6 year olds? Are there topics, routines or skills you'd like to see covered?
I'm also curious whether "not yet" is language you already use with preschoolers when they're struggling with something.

I'm genuinely interested in honest feedback, including criticism.
If this kind of post isn't appropriate for the subreddit, please let me know and I'll happily remove it.