There really is a lot of green here! It's actually a really well done shot, the green on green with the little splashes of red works well, though I'm not sure how long I could look at it for as it's a slightly luminous green!
I think that maybe the crop should be a little bit tighter? Maybe try cropping by the birds right wing so that the eye naturally follows the tilt of his head. but I love the green colors here.
lovely details in the feathers captured - the light on the bird seems a bit bright and it seems that the top of the head was burned a bit too much to bring back those details.
Very nice greens on this lorikeet and the backdrop complements the colors as well:-) IMHO, this is a slightly average shot but has the potential to improve and move into a 7 or above score. First the exposure has the lighting falling harshly on the top of the head and upper side of the bird. Closing down the aperature or using a faster shutter speed would let less light in to prevent overexposure and blown highlights. IMHO, it is always better to show the full body rather than chop it so; unless you want the viewer to focus on a certain portion to show us something like focusing on the eye to show us the heart that beats within. A vertical composition capturing the complete body of the bird will show us it's beauty all the more but it would also follow/compliment the body lines that flow in a vertical presentation.