I had a a couple of nice example of how well google image search can work with uploaded images and a couple of descriptive words. Here is one.

While walking today I saw clouds of butterflies, although I tried to get a good photo I failed miserably.

This was the best one:

I uploaded this to the google image search, which gave me good feedback on my photo skills:

Google thinks my butterfly is a bear, dog or fish!

The addition of a few keywords nails it:

A google wrinkle worth teaching I think.