General Scribbles

All my glowy, bloom effects are painted in by hand with an airbrush set to Screen mode. If your favourite software doesn't have brush blending modes then you can just paint it on a new layer and set the layer to Screen. And I always use a very saturated midtone colour but I probably overuse that deep indigo-blue which can give that anamorphic flare look if you paint it horizontally.

(Edit: There is  a video  of it if you can decypher what's happening. The glowy bits happen at the end.) 

Great likenesses again and I like the framing effect with the background but I would probably extend Ellie to the edge, especially with the nice depth of field that you've done.