This photo is a few months old. Grendel is molting right now and has those little things that look like the end of your shoelace all over his head (poor baby). Anyhow he has more purple and black on his face now. This photo was taken on his favorite "perch" in my sunroom. I will try to post a more recent photo soon.
What a cutie! Definitely parakeets like to look outside and get some sunlight on them - they need the vitamins in sunlight just like people do. But make sure they always have shade - a keet that is stuck in the sun all day can overheat. And also watch for drafts by any window