Google Flat Design Rebound

My version of a Flat Design Redesign for Google.

A redesign that is, in my opinion, more realistic and in accordance to Google's style ( than other flat design redesigns ).

Each of the attachments contain a version of the redesign applied to the whole homepage.
The only difference between the two versions is the colour of the sign-in button.
I couldn't decide, but according to colour psychology, the blue is more welcome, and therefore a better fit, for a sign-in button.

Update: I decided to follow through on some advice and suggestions; and, also went with the blue sign-in button as I felt it to be more welcoming ( than the red ).
All changes can be see in the updated attachment.