Longing for Freedom

Not sure what category this would go under, lol.

It's based on a dream I've been having, but I'll leave you to try and interpret what's going on here, and what you think it means. I'd like to hear your thoughts.

Credits:
Lineart by Maia on Equideow
Background by
Crow brush by
Chain brush by
Abstract brush by
The rest by me
~~~
Tima taken: 2 hours 45 minutes
Program used: Gimp, like always
Inspiration: A dream, and the song 'Set Me Free' by Casting Crowns