Okay, I have no problem with referencing stuff as long as you credit the source. You should always credit the source, people! Coloring manga pages is fine - sure, why not, what the hell, as long as you make sure everyone knows it's just a coloring job. It's not like I'm going to report you for that.
But tracing official art and/or coloring OVER it and then saying it's your own work? Give me a break! This is especially stupid when you can look at the rest of the gallery and see that this person is a terrible artist! I, myself, am not a very good artist (which is why I've only upped photos), but at least everything I draw, I DO IT MYSELF