Hi Berry,
You are good CH with a great appreciation, thank you. However, actually its not a must to give any response to every work submitted, especially if the work failed to interpret your need. Would be hard for you to response each work, I believe. So, just feel free :) Including to throw away all works that not interested. Sometime it would help all designer here has a better interpretation of your business, so we can contribute another great ideas on our next submission.
Thanks,
Herdian