How do I get my image into first place?
The text next to an image is taken into consideration when ranking images. The more accurately the image description corresponds to the user's query, the more likely it is that the image will be shown on the first page of search results.
The quality of the site where the image is placed, as well as the quality of the image itself, also affect ranking. For more on what makes a site high-quality, read the Tips for webmasters section of the Yandex.Webmaster Help.
The search results for each image include a link to the page whose description of the image best corresponds to the user's query.