Design a kids T-shirt

I am looking for a talented designer to help create a great design for a kids T-shirt. This design will be geared towards the age group of 2-8 year old boys and girls.I am focusing on unisex designs. I want the design to be minimalistic with no specific themes or characters. So if you have any creative ideas for the design, I would love to see it. Let's make something fun and unique that will capture the attention of the kids. I have attached few reference pictures that I want the design to be around.