1 & 2 these two shots are quite similar. there are two problems with the images the main subject is underexposed and the bokeh in the background looks really strange, I would have been tempted to do spot or centre weighted metering to get correct exsposure on the animal and let the background be overexsposed as its not adding anything to the photo.
3 Its quite nice, I think the image could be sharper, again the light isn't great
4 I think this photo is the best of the bunch, Again you are being plagued with that weird bokeh anf there is a strange artifact in the bottom right hand side of the image which I presume is an out of focus fence?
5 This would be a brillant photograph if there wasn't an ugly tyre in the sence! What where they thinking puting in in the cage?
Hope that helps
Stuart