Thats the first thing I thought. Looks like there is a whisker in there though... Sent from my iPhone using Tapatalk
Looks like some kind of clothing to me. Hopefully not if you're the only one who is suppose to know where your cams are.
I also think it's the front shoulder/neck area of a deer. Given the early July date, the fur was likely pretty thin allowing you to see the veins. I had a couple of deer on cam last year that looked like posters of diagrams of a deer's vascular system.