As being a supposed series for a cafe, it certainly does not look like it at all. However, I do think it suited the theme that I have for it, which is Mystery. Probably with a few more pictures and perhaps, some images with food would make it better suited for the cafe. As for now, it will compel to children if the restaurant has some form of fantasy theme (which there are some of its franchises that are themed that way!). However, since the main focus of the cafe would be to eat (or to shop), these adverts will only be good as a lead up to some other adverts that will is more focused on food. 

The last image's logo is of a different size as well (tilting). Perhaps, it would have been better to look at all the images and form new ideas instead of focusing on just the Mystery. Perhaps, it would have turned out better if the direction that was chosen was Exploration instead.