WOH, back the train up, hold your horses or whatever the heck you need to do. That's his own opinion that the art is rubbish. You my friend are a snake ready to snap at anyone, what is your deal? Going right to the ego card with ZERO prior evidence of him having one? Who are you to say something like that? That is a borderline low blow.
And are YOU a manga artist to determine his statement?
A: Absolutely not
B: It's HIS opinion, that's a basic ELA tool everyone uses every day, he has the right to use it without being criticized.
You also have to realize that is your opinion that the artwork is not rubbish. It's borderline lowly and rude to criticize someone for their opinion.
I've said my piece for your disgusting statement.