Its okay, Its not amazing, but its not terrible. Great for people who just need something to do while on the train e.t.c
Art - 3 - Most people dont really like the art but I actually like the art; A vintage vibe.
Music - 1 - For the first 5-10 mins of the game its fine but then starts to get rather annoying.
Concept - 2 - I have seen this type of gameplay concept somewhere else but can not remember.
Controls - 3 - I see some people are having problems with the controls but to be honest I just see not problem with them, only 3 out of 5 on this one because other people have reported controls bugs e.t.c
You can improve this game by doing this steps.
1) Fix the odd resolution of the game (something like 1280x720 or maybe even 1920x1080)
2) Get rid of clutter (For example, the snow parallax effect and the white seams in the bottom and the right.)
3) Optimize font and font color (The green 'goal' counter is quite hard to make out due to the font, I suggest doing a more bold color like black or yellow for example.)