Your criticism wasn't constructive. All you did was say all the bad stuff you can say about the design. When you criticize you suggest in an appropriate way, not like a kid trying to say "Haha! Your design sucks!". The way you criticize just pushes me away from ever trying to do business with you, and I am sure other people feel the same way. You make a point that if we are not with you, we are against you.