Only thing I can say is you need to work on centering and aligning things better. And it's better to do it in the beginning than when your layouts finished.

Okay lets start with blue, none of your borders are the same size, blue and cyan are both making the same point, but with different parts. Blue is the thick border, cyan is the tiny border. All the numbers on there are pixels.
Yea the bottom part of the blue border could remain that thick, but the sides should definitely be the same
And the red part, I don't know what you did there, but the line just gets 1px smaller for no reason. Might wanna fix that.
Like I said before, It's much easier to fix this little errors in the beginning. I used to never use the ruler or the guides in photoshop, but now they are my best friends.