I know, sometimes it annoys the heck out of me when someone gets criticised and all they can say is "Yeah, well, I'm new, and anyways, you don't know anything. BLEH!"
I love getting critisicm, it makes me better as a person.
On another note, I took a look at your sprites, and I have to say, I'd rank them amongst some of the best I've seen here on PC. ;) (I especially likes the Sableye evo)