Ok, my attempts at speculation based on having just read the past 8 pages, the Wiki, and the links to D-Stage:
Questions:
1. What was the online retailer that mistakenly called Rosa-Beatrice Maria? Should we be wary of that here?
2. Couldn't really tell from the posts, but when was this image leaked? Am guessing somewhat recently.
Observations:
1. Someone mentioned that the new girl didn't have a Golden Eagle crest. I can't really tell, but there's something that midly resembles the crest on the girl's stockings. Also, Eva's portrait doesn't have a crest on her clothes, minus the staff.
2. The most interesting part of the portrait is the fact that there's
another painting inside of it, of a pretty barren wasteland, possibly what Rokkenjima is to become?
3. Second most interesting part: the golden eagle crest in the title is
backwards. Perhaps it's the other 'wing'? Possibly a reference to Kinzo's wife?
4. I really feel like the hand is a reference to something in the game, either how someone died, or some random saying.
Total pure speculation:
Man, August is going to be one hell of a month.