Looks like this has been patched now.
Well after all you are the "Herald of Andraste" and perhaps its a divine glow 🙂 Jokes aside, im not sure as ive personally not played a mage but I have asked my brother who does on PS4 and he says it doesnt happen with him. Is there a mage forum/class forum anywhere where you could ask? not been on here long enough to look myself as patch 2 has destroyed my will to live!
EDIT: Just seen your screenshots, they didnt appear first time I read it as you must have edited them in. Anyway it looks like you are playing at a lower resolution/gfx settings? if you are then bioware said something about 2 setting had to match each other and if they didnt then strange things would happen. I would try just for testing put everything on the presets like high/ultra/med and so on just to see if it remedies it.
I've had a search around the Bioware forums, but haven't run across anyone mentioning anything similar, yet.
