Here is my first draft for the product print ad.

Some comments from others:

1) Draw just the top half of the cow, not whole body so it looks more like wanted poster
2) Include the product inside, probably get the cow to hold in its other hand
3) Not enough colours to attract children
4) Change the Muahahahaha font to something that appeals to children more
5) Too cluttered at the bottom, can remove the “6 exciting flavours”

Shall make the changes soon, to be continued! ~