There is always an idiot in the bunch, and usually that person is out to make everyone elses day as horrible as theirs is. But, just roll with it, if they don't like it, that is their right. On the other hand, you worked hard on that, and you liked it so that is all that matters. I will be the first one to tell you that I don't care much for criticism, but just like life, you are bound to get some of it anywhere you go.