Site layout: The lack of being able to use the back button isn't too bad, but I kept having to scroll up to read the top of the comic. Click, scroll up, scroll down, click scroll up, scroll down...it get's old.
The wrtiting doesn't seem natural. It feels a lot like you came up with this story idea for a character being transported to another world, then said "Wait, that's not what I would do...". So you promply ignored yourself. Instead of changing the story, you made the main character blaze about the whole thing. No matter how bland or undesirable someone's life is, nobody is going to take calmly to being transported into another world like that. It would challenge the fundamental beliefs anyone has.
You really should "Write from what you know." It's ok to put a little bit of yourself into every character. If it's not something you would do, or that you've seen someone else do, you really shouldn't write it into your comic. I'm not talking about jumping between worlds, or fighting aliens, or whatever; I mean the way people deal with these things. I've you've never seen someone angry before, you don't have the right to write stories about angry people. On the other hand, if you've seen someone angry before, and you write a story about an angry person, there should be similar elements to how they react.
The main character just feels like they don't care, and aren't really interested in the fact that they got transported to an alien world. That does merit the same reaction you would have, "!!!". It's ok to devote a page or two (depending on the pacing) to the person mentally dealing with this. The main character doesn't need to be constantly whining "What am I doing here?", but at some point he needs to stop and take a moment to evaluate the change of events, deciding if he's going to accept them, or fight them, or not care about them.
Also, there are parts where the comic reads a little like a collectible card game description. "This radio headset is also doubles as a psyonic-ultra-blaster that deals 8 damage to any Dark creature" People don't usually talk like that in real life. You also don't have to describe every detail to the audience. The audience can pick things up indirectly. They also don't need specific details. Try showing your audience how things work, instead of giving them technical specifications. Another way to give the same infor mation above is:
(Character removes radio headset from head),
(Character pushes button),
(radio headset turns into glowing thing)
(Character hands glowing thing to other Character)
Character: "Use this psyonic-ultra-blaster in battle, it is most effective against Dark creatures."
This example use much more natural launguage and doesn't recite a list of technical jargon. It does convey the same message: This is a weapon, it's name, what it's used for.
Hope this helps, take it with a grain of salt, and have fun.