Hitachiin Hikaru and Kaoru

I am sorry to be a bother to you but I have a request.
There's is a anime convention called Senshi-Con in Anchorage, Alaska.
And during this convention we're doing something called a "cosplay chess." Which is basically a bunch of people in cosplay pretending to be chess pieces and two of our pieces are the twins.
And at the beginning there will be a slideshow showing off everyone characters.
It's surprisingly hard to find a good picture of the twins in the anime.
So I was looking through my friends favorites for a picture and came across this one.
I was wondering if we could have your permission to use it in the slideshow? We will not claim it is our art or anything.
Although we will also not go out of our way to say that it is yours, since that would require editing the picture to say the artists name.
So may we use yours?
((And just so you know, even if you do say yes, we may not use it. I am not one of the twins but depending on your answer I will show them quite a few pictures and they will choose their favorite.))


I look forward to your reply.
Thank you very much for reading this and I do apologize if I was rude or my request was terrible or anything along those lines.