Here is another image search engine for you ... Gazopa
http://www.gazopa.com/

It is similar to TinEye in that it finds similar images but it seems to take the term 'similar' quite loosly.  If it doesn't find the exact image it will find images that are similar color and shape.

But in addition to uploading an image and finding similars, you can also DRAW an image and it will find images that look like your drawing

It is fun to check out, if for no other reason than to find out what your drawings look like