Well, you joined those pages which is actually more than I can do, we have a "specially trained" guy to do that.
(Read: I'm incompotent and don't have a clue what to do, the other guys are lazy, and one guy is particularly quick at it, so it gets foisted on the same poor soul week after week, bless ickle Vitron)
I'd say that the typesetting could use some work, the generally recommended font for Edited Mangas would be Wild Words, and the only way to get better, as the age-old cliché goes is by practising, no particularly heavy faux pas other than the POW!! (Kidding, kidding).
Also, I prefer the text in all capitals, but that's just a preference for the sake of neatness
You blacked the blacks, patterned the greys and stuck a gradient behind the sky, all of which is pretty nice work and which is actually generally done only if you're going for MQ and upwards so I'm actually very impressed with that. Probably the area it's lacking in from a cleaning point of view is what I would term "pre-cleaning", that is, the stuff you do prior to blackening and patterning the greys, levelling and so on, I feel that probably slightly too much detail was lost through blurring, you can certainly get away with it but you have to be careful.