What kind of "creativity" will your platform offer? And why do you need to develop this in your project? From the information I got on the Venoty site, the idea of this project has emerged from 2017, I will look closely to know more about your project.
A child can develop and express his or her personality in his own way pretending to be animals,snowflakes,fairies,giants, mice, etc.
Show the child a picture, then ask questions to stimulate and create a thinking atmosphere, for example: What are the people in the picture doing? What are the people saying? What would happen if
? One way to help children to think more creatively is to ask them to change things to make them the way they would like them to be.