This is a mockup(a set up I made) for a game I was commissioned for. Apparently the graphics of the game were completed in 3 hours and all these things are tiled, except background.
The game is highly inspired by Flappy Birds and IronPants. The character was supposed to look funny and thus I gave it that look. You can play the game here: https://play.google.com/store/apps/details?id=com.nextfunapp.ironsuperdog
Let me know what you think about graphics. | 
After this having been brough to my attention due to the release of the game, I find it odd that you should have mixed perspectives(road versus buildings). Other than that, great clean style, really nice effort for only 3 hours.