Ok, here's my thought's.
It's really boring.
I didn't feel attached to any of these characters at all
Cynical Mc, Perverted comic relief, Generic love interest, I can really only say that Myth was the interesting one and actually gave me a laugh or two, also she's a qt.
I didn't even know what Carter's motivations are, he just wanders, and I was just finding it very hard to cheer him on, he didn't feel like someone that I would want to hang out with.
And I guess Ulys is just there.
Anyways, the grounds and clouds thing was confusing but i caught on later, same thing with the clouds, and I gotta admit that was pretty clever.
Also, you need to use some new camera angles because i noticed you use that 3/4 view of two characters just standing in front of each other quite a bit.
Another thing, shading with gradients is a big no-no, use cel-shading.
There are a lot of walls of text, and I think you should listen to Alan Moore's theory of "No more than 25 words per panel"
What is even wrong with Myth? She doesn't even seem sick in anyway like Marker was talking about
Over all, it was, painfully mediocre, it doesn't really present anything new on the table.