Rokket, I must say I'm impressed by your venture: every item made by oneself! Wow!

It seems, from what you have posted, that you are sort of decided on the graphic style. May I just suggest something?

The font, Comic Sans... Well, the name may be alluring but trust me, this font screams "I'm new to online comics".
Let me just post a link to one pretty nice book: http://www.amazon.com/Thou-Shall-Not-Comic-Sans/dp/0321812816

There are dozens of free (and viable for commerical use) fonts out there, and each and every one of those is better than comic sans. Take a look here: http://www.fontsquirrel.com/fonts/list/style/Comic

I, personally, am fond of Zud Juice from Blambot: http://www.blambot.com/font_zudjuice.shtml (the site has already been mentioned here)

Another thing is lighting the scene. Some scenes in Poser just turn out flat / with no depth. Or the colours get that dustbowl treatement. It's mostly lighting fault. If we take a look at film and tv productions, the skin and scenes in the high budget ones look so good because the light is fake ;) i.e. it is simulated, not re-created.

A nice fill-in light, a key-note light  - the parameters differ with every scene (well, sometimes they change in one scene a dozen times). Adding extra contrast in postwork is also a good idea. Some Poser-made comics look "underfunded" (for a lack of a better word) because they pay little interest in lighting...

Sorry for the long post, I just used to create Poser comics and am working on a new project for quite some time now. I have indeed started with comic sans and sub-par lighting myself ;) There's a proof at the top of the post ;) Then I changed a thing or two... (and then i stopped creating, a trend I'm trying to subvert now)