Don't let these starfishs tear you down (as I know they will) but I personally love this drawing. Continue on with it. A story would be awesome.
Just make sure you don't call people starfishs simply because they are giving their opinions. Everyone has that right, and by calling them starfishs, you are attempting to deny that right, thus making you the one who is acting wrong. Just thought I would clear this up, because I don't like that attitude, and it seems to be very prominent on these particular forums. If you think they are being starfishs here, you should try other forums, and see just how harsh people can get. Yes, there is a line, but so far none of these people have crossed it. They simply just gave their honest opinions.
If this many people have negative comments, then clearly something is wrong and needs work. One cannot improve if they only get positive comments, as they would never know what is wrong. It doesn't matter how much it's like taking a punch in the face. If this is truly a world meant for them, they will eat that punch and get back up and try to win the battle by improving. If it is not a world meant for them, then they will simply just stay down.