I like how you did the particles in the sunbeam, that’s cool. I kind of like the lower right one but then I’m partial to that orange fiery color. You should probably choose the coloration that captures the feeling you want best.
The last one with the glowing door is great too but it makes me smile because it seems like the figure is opening her robe to flash us Did I mention I have an over active imagination?
Anyway, this could totally looks like a fairy tale. Nice work.