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.