Although I didn't see any pictures with Clark Gregg in sunglasses anywhere on the internet, I felt the urge to portray him that way too. His black-rimmed glasses probably inspired me. Some quick tests, and this was the result. Just for fun! :-)
Sunglasses change a person's appearance quite dramatically. He suddenly looks like a vicious killer from a cop movie.
He looked much friendlier without it. Okay, he was smiling wider here too.
And he wears a brighter shirt :-)