It's a snapshot worthy for stock. I wouldn't rank it high compared to the other images in your portfolio. Even if you adjusted colors, contrast, and brightness to make it pop, it's still going to be a snapshot. It's too generic and common to really stand out as a landscape image.
Brighten up those highlight, and get the feathers WHITE rather than gray. It will be much more appealing. You must have everything else right, since it was accepted, but get that done, and this will be really special.
Check out the book "Birds as art" by Arthur Morris. The greatest book you can ever find to understand shooting techniques best and get all images perfect on-camera. Wildlife photography is usually the toughest as nothing is under control. So that books provides you with details on composition to post processing - everything. :)
55-250mm standard lenses. Dual tube macro flash and external speedlit...