I like this cover. There is enough potential to make a nice pixelart cow that collects words and makes sentences out of them to pass a level. (or you have a wall, with certain words missing and you need to find the words and put them in the right spot) The shadow of the cow (with smiley) means it can help reach places the cow can not go into (maybe by extinguishing the flame).
And the image already provides 3 levels: City, Forest and mountain.
So for example: To get into town, the guy-that-talks-out-of-his-arse says you need red boots. And you find a billboard that says "Get ..... boots". So you find the word "red" and put it on the billboard, and you get red boots.
Then there is another billboard that says: "And cow went to the ....", so you need the words "forest", "mountain", "city" etc. to go to that level.
There is a ".hicken", gray sprite. Find the "C" and the chicken gets a colour and gives you an egg, open the egg and you get a word, which you can combine with other things.
Billboard "It was ....". Then "rainy" gets you a rainy level, where frogs are, "morning" get's you to the mountain that is awake (to talk to)