yes, agree. There are new pictures in the index. The "deadline" in my (german) galleries seems to be around March 15. No newer pictures of mine are indexed.
Did you see the change in the algo. I called it "variety factor". If you check e.g. the image results for "mona lisa". Some month ago the first page looks like the actual page 7. And the actual serp 1 is a funny mixture of many variations of the picture. (Now its a little bit like bing.)
Did you see this : please scale your browser that it shows 7 picture per row. Then search for "albert einstein". In my browser the result no. 1, 22, 43 are different versions of the same picture. Also result 2, 23, 44, or 4, 25, 46. Its really funny - seems that google wants to show the same pictures on every result page.