This picture is very beautiful.
I enjoy the contrast of dark colors with light colors.
The lighting effects work well together with your characters.
The characters fit in with the environment created in the picture.
The characters not only blend but you use brighter colors for them.
The characters are more colorful than background itself.
The characters really pop in this picture.
I would be interested in seeing how your future characters will evolve away from anime style.
The overall picture is a very strong piece.
Keep up the good work.