If you show it, why not show it off?

Looking through online artist portfolios, it’s common to see small images that don’t give the viewer a full appreciation of the work. In those situations I find myself wondering why the artist chose to present the work so small.

To illustrate what I’m talking about, the same image is shown at two sizes below. The small one is good enough for a thumbnail, but it doesn’t have enough detail to give more than a general impression of the work. At the small size you don’t see any of the scratch patterns in the background. The large size is much more interesting. Though not big enough to use for a high-resolution print, it shows enough detail to give the viewer a better appreciation of the original.