Looks real except for the brush on the brush. That looks to computer generated. Like if it looked more like it had some gaps in it and such or more detail towards the tip then I would be more believed in thinking this is real. However, I know hair is difficult to do even for pros. But still a good pic.
I agree with this person. I also noticed how the brush looks a bit fake between all those VERY realistic bottles and liquids. I would have no idea how to do it any better though, so you've truly done an amazing job.