What shutter speed were these shot at? Having a quick look I would have said it looked more like motion blur than a depth of field issue? The more I look at it, the more I like the 2nd one as well, it's so cute and cuddly
Chris
Ah right, and I can see why! The 'rule of thumb' is that you should try to use a shutter speed that is 1/the focal length to eliminate motion blur and camera shake etc. So something like 1/500 would have been a better speed. Of course that would have required an f-number of 2.8, (hmm, 500mm f/2.8, shouldn't be too pricey, eh?!
), or increasing the iso. Obviously that figure changes if you're resting on something or supported, but you get the idea!
When using my 70-300 at the long end, if I ever see the shutter speed going below 1/200, I adjust something because I know the result will be blurry! And i'd prefer a noisy photo to a blurry one!
Sorry for rambling a bit, i'm on my phone so can't really review what I've written Chris