Truly great idea Pony!
I really like it

I know you haven't finalised the shot yet perhaps, I would be tempted to play a lot more with the composition. Don't be afraid of getting in a little closer to your subjects, it may give a better sense of scale. Even if we saw just a part of one wing, it would be enough to convey the scale of the beast. Also be aware of how your framing can really accentuate your message. Like Kevin says, it almost has an air of Stahlbergs work on the cover of Expose, and while I'm not suggesting you mimic that, it may be worth taking a look at more pieces like that and study how they portray that sense of timing and anticipation through strong composition.

Great work Pony!