Lumia 900 Camera is it really Disappointing?


I recently went to the Queens Zoo, to test out the Camera on my Lumia 900, i took about 80 photos & will put few on here & a link to our Flickr page, I am pretty happy with the results but again I am no professional. If i compare it to my N8 i can be disappointed especially when comparing night shots, but that goes for every other mobile camera out today compared to the N8.
Below are a few shots and please let me know your thoughts, is it a disappointment or can it compete with the rest of the 8mp shooters out today.

Here is the Full Gallery.