Your rip pattern is nice, what missing is the shadow effect, the placement of the shadow on the tears would have made it more realistic, take a look at airbrush.com or was is it .net some good how to articles.

You over shot the shadow or shade that you were intending to do to make the tear rip patten stick out, but overall a 6 for the first attempt, just remember when it comes to airbrushing, "less is more"

Keep it going you have a knack for it, more attempts will get it right.