It's good but...
I'm gonna try and give you constructive criticism, ok?
Here we go...
If you could have taken one minute to change the graphics like the buildings, you might have gotten a higher rating from me.
For a game like this, there needs to be more buildings with lower incomes for a challenge, because basically I'd poisoned my City with power plants in 20 minutes.
And the Main Menu music was rather odd. The songs kept switching every 10 seconds and the songs were completely different genres, which made it confusing to listen to...
There, hope that was constructive enough for you XD