Very interesting but causes me to feel an extreme amount of caution; just because this stuff is coming out of a Christian picture doesn't necessarily mean it's from God. The Bible says that in the last days there will be signs and wonders that may deceive even the elect... I find this a bit creepy myself.
I think one thing to remember is that the Devil cannot create like God can. He can only corrupt.
So, you are saying "these" are the last days? The first disciples of Christ believed that they were living in the "last days" and that was 2000 years ago. These may feel like the last days but only God knows when that day will come. In the meantime, there have been many examples of bleeding icons. In each instance where the blood was analyzed, it was ALWAYS AB. This particular situation just happens to be better documented and scientifically examined than the others.