One important thing to consider is your background ,
put a marker where you plan to set up and look at the marker from all angles , especially probable deer entry routes . A tangled background works well with all blind patterns , avoid grassy backgrounds like open fields .

Once you have the blind set up lean some branches that have some leaves on them against the sides of the blind , make it blend into the area so that it doesn't look out of place . Have some sort of cover on all sides if you can .

I've set mine up blind many times just to have some cover , and it didn't seem to bother the deer . Most just looked in it's general direction without any sign of alarm .