Glitter / Snow / Painting
My personal preference for "glittering" an item is "less is more". I love the hologram glitter of snow but as you can see from the white spots (snow sparkles) you can almost count them......and this is the way I really like to do my winter snow landscapes for a touch of realism. The Glamour Dust paints are fantastic for adding just a touch......and the dry glitter which I sometimes use has been put in a pepper shaker so that I have more control of the "flow".... which I have been sprinkling on this way for years.
Also you can see from this picture the reason I prefer Paynes Grey for my underpainting of snow. Here in Oregon snow has more of a grey blue cast vs the snow on the East Coast (specifically PA) where the snow has more of a blue than gray "cast" and see the little "mounds" which are slightly umbrella shaped.
Just little things to think about when adding those final, important elements to a painting... Pure White IE: Titanium White is the LAST highlight(s) to add. Work up to this stark white starting with Soft White,,,then add Titanium White in varying amounts...dirty brush... I don't ever wash my brush for this step....I use a towel to wipe off excess...and to "test" colors....