As per the reference link you have given and the given requirements i perceive that we have to design 3 cartoon characters looking like stone age, images of cartoon cars, game button images and background design of stone age.
We will design these for you
You just need to provide me the design specifications if you have any.
We are a team of experts involved in logo design, banner design, graphics design since 4 years. We will provide you revisions of the design until you are satisfied with it.
If you want we will provide you reference of our previous related work so that you can get assured of our quality work delivered.
Looking forward for your response
thank you