Best process for QE to test my designs?

I am having issues with my QE team testing/reviewing my designs after development. After the developers develop my web page designs, their are lots of styling issues... the developers will use the wrong font, wrong colors, just over-all not how my designs are (I redline my designs and also use InVision inspect). But for some reason those developed pages will have obvious styling errors will get past QE. What is the best process for QE to review the developed pages to make sure they are pixel perfect to my designs?