This is too cute. I love that you use animal sounds as a way to help students and children with speech impairments. That is a great way to get them talking, as animals are so integral to early-stage education in children. It also encourages the caregiver to stay involved and facilities a better relationship between whoever is reading it. I also like that it plays into all senses, especially the jumping and feeling. Have you considered naming any of the characters or do you want to leave it as "city lion"?
This is a great initiative - I appreciate that you're using CHVs to both educate and provide care. As Brian Ouma mentioned below, people are the best solution. I also like that your CHVs are technologically equipped with an Android that enables them to collect data. This is especially important in ensuring that the project is as efficient as can be made possible. I wanted to know more about your partnerships with schools - have you thought of sending the CHVs to schools alongside door-to-door outreach as a way to save time and reach a more late-stage audience? I know your focus is on kids 5 and under but maybe that could be a way to reach the kids who are a bit older but still haven't gotten vaccinated? Otherwise, great work. I am very excited to see where this goes and support it!