OK I've taken a closer look (Hive Viewer) and I hate to say it, but I'm a bit underwhelmed. Overall it's really sparse, but that's not that bad; my real issue is the front bit. It's just a solid box, with an eagle face on front & those weird, flat wing-boxes on either side.
I'm really not sure what to suggest, aside from rethinking the geometry & even the placement of that front-bit. The gryphon-concept is solid, of course, but I'm just not in love with it currently. :<