More than once, my image appeared as #1 in Google images. In 1st case, article is only ~200 words, from PR4 WP blog. Competition in Google images is 211,000. In 2nd case, two images rank #1 and #2, article is ~1,000 words, PR4 WP blog, competition in G. images is 37,000. It took about 5 days to rank in both cases. What I did: - keyword (kw) in the title - kw in H2 tagged subtitle(s), - kw in alt tag - kw anywhere in the article, naturally - images are highly related to the article content What bothers me, is that several images from quality articles from one PR1 blog rank - nowhere.