I like the serene, magical atmosphere of this picture, and the way you drew Frisk's eyes. This scene really gives the impression that Frisk is surrounded by friends, and is enjoying a peaceful moment away from the hostility of the rest of the Underground.A couple quick suggestions for making your glow effects look better:1. When a dark-colored light source is casting light on a non-black object, especially one with a lighter shade than the light source, make the color of the glow slightly lighter than the color of its source. When the light source's color is darker than the object on which it's casting light (like Frisk's soul compared to their shirt), it makes it look like the soul is casting pure color or even darkness on the object it's glowing on.2. Add a lighter shade of the base color to the center of the soul, so it looks more like a light source.Here's a quick demo of what the abovementioned glow effects look like in total darkness and on clothing the color of Frisk's, so you can see the difference.The two souls on the top are both casting light the same shade as their base color, albeit not at full opacity. Notice how Frisk's shirt seems darkened.The souls on the bottom are glowing their base color in the dark, but on the shirt, the glow is lighter than the base color, so they aren't darkening the shirt.I hope you find this random unsolicited bit of art advice helpful. ^_^ Whether you choose to use it or not is up to you and the type of look you're going for in your art.