A more general selection of test shots are revealed on this page and next to act as an evaluation of the Nikon D3100 in a variety of shooting conditions and with 18-55mm test lens attached for consistency.
This close up hand held daylight shot reveals the level of detail achievable with the 18-55mm VR kit lens attached to the D3100. Whilst it's not uniformly pin sharp and we've lost a little highlight detail to be picky, it's a respectable showing nonetheless, revealing reflections in the water droplets and the crispness of the dying petals.
By contrast an image taken with the D3100 at the telephoto end of the supplied zoom, and with vivid picture mode selected to bring out the vibrancy of the green grass. Again we've lost some detail in the highlights, notably on the goose's feathers.
A wide angle shot revealing some softening towards the corners of the frame, but overall a pretty good level of sharpness. Having biased exposure on foreground detail, we've lost definition in a large expanse of sky.