Artist’s comment (Polish at source):
 
I’m sorry, but I just always want to draw something new so I didn’t reproduce the scene from Luna’s image (>>895350). Maybe I should, maybe then It would look more epic. But now it doesn’t matter because it’s already done. Although maybe because of this or due to other factor I’m not fully satisfied by this drawing. I feel that there is something missing or I did something wrong. Maybe the pose is not dynamic enough. Or the issue may be that the A4 aspect ratio doesn’t fit well for the scene, I think that from now I will start to use more panoramic canvas for my drawings.  
Or maybe the reason is that I like Luna more - she’s my favorite princess after all :D  
Anyway I worked on this drawing from few months, struggling with artistic blockade.