thank you for the feeback.
have just logged in, and i find out that some one uses the concept: exclamation point in circle. in LT the first person introduce a concept will have the right to develop it, and no other designer should use that concept. this to ensure that you will get variety of design options. i will contact the other designer regarding this. you don't have to worry about anything.
nevertheless, i got all your points and will still develop my concept and deliver it to you. thank you
wolv