Little advice: pay attention to titles and keywording. I've seen that many images in your gallery begin with "the", try not to use those prepositions when it's not really necessary. For example, instead of "The house of Claude Monet" you can use "House of Claude Monet" or "Claude Monet's house". Also, try to vary your titles. I had the same issue myself and after I rekeyworded most of my images, my views began to increase.
About keywords: use only relevant keywords, everyone around here insists on that. For example, here: http://www.dreamstime.com/royalty-free-stock-photo-the-house-of-claude-monet-in-spring-2-image19237825 you don't need fruit, fruits, cycle, break, tourists, japanese, nearby.. I don't see any of these in your image. Another example: http://www.dreamstime.com/royalty-free-stock-image-castle-of-fontainebleau-image18970786, you don't need birds, tourists.. These are two fast examples I picked up.
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