Atmosphere, I would say is good. I count all the little houses, sheep, and lizards even a guitar player! That is a + for the atmosphere category for me.
Graphics were nice. It feels like you had a good style. The pure yellow background could of used something a bit more to feel more like a desert, but that is nitpicking.
Credits menu is a bonus. Could of used a controls and instructions page in game too.
There was a nice story in the description, which also fits the theme, but then it was not really conveyed in the game. I mean, I should not need to read your web page to see that story. For example you could of made a second menu like you had for credits, which could contain the story you put on the web page in the game.
No sounds, No Music.