This is a little late, but I only just found these two photos.
These are from OhayoCon 2011. I went as a Rudolph who apparently can find all he needs for his suit at his local Goodwill. The Umineko panel was a fun time, and I hope to see some of the same guys at ColossalCon next month for the same panel.
I gotta say, that Kinzo was perfect for the role. He can even recite "La Divina Tragedia" by heart. I'm proud to be his character's son (or something like that).
And whoever cosplayed Bronove, you were awesome, and thanks for that kickass One-Winged Eagle pin! And the rest of you, if you are reading this forum, were great!