Effects? I think that is her gohei you are seeing in the sky. I did get a bit lazy and erred on it as it is drawn vs how a real one appears.
Not much change except expanding the canvas to better balance the image and putting final work into the stairs which are very ulcer inducing. Blocking in details around the gate and planning what will be what. Still a bit unsure as to what will surround the stairs. Modern shrines(jinja) often just have gravel concrete or packed granite gravel (that stuff that packs up into a hard surface) Or some other stone. Older ones will have grass bushes or just dirt.
Clearly I will likely have to grade everything so Reimu stands out a bit more than she does now. Not to mention some drabbing of the colours.