Sorry for the lack of feedback on your work. I'm still in the thick of it but I do appreciate all of your help.
Anyways, I'll chip in a few points..
eelis: For the vortex illustration. I don't see any Snake Monster? Am I missing something from another post? I just don't get the reference!? Right now the atmosphere you are setting up looks spot on, The values are working, now you just have to dive in and start rendering the image out. If I were you I'd create more chaos in the image and use the warp function liberally to bend the perspective around the vortex. Maybe consider tilting the horizon too. Also don't be afraid to use motion blur and whatever crazy effects that you can think of to enhance the mind bending aspect of a hole opening up in space. Check out guys like Jon Foster and Phil Hale for some inspiration. The knight looks akward. Does he need the flaming sword? because it's not necessary to the story as I see it. Does it have to be a raging inferno blade? Ask yourself what is his motivation? His pose suggests little and I agree that he appears to be looking at the bookshelf. Do some side studies of that character and explore this. The lower right looks a little dead, perhaps you an fill it up with more chaos and objects that will tell us more about what is in the room. Give us some clues as to what is really going on.
Eb: Good to see the Sethlan is going strong for you. Remember to stick to the brief..... I like the idea of a omni tool sword but is that really a Sethlan thing? I haven't settled on a silhouette yet, I want to see you explore different shapes and sizes, it just has to have a humanoid skeleton but there is a lot you can do with it. Think about adding to the universe. Right now ME already has it's space ninjas like Kai Lang and even Thane. If he is going to be a Martial / Tech character, why not give him something besides a blade? Like a space whip or space axe? I want you to have fun with this so do what ever you want, I just am trying to push you to justify your design decisions.
I don't know how much I can contribute to a group project but I'd be willing to pitch in when I can. I think you should pick a genre that you can sink your teeth into and be able to stick with for the long term. Or you can pick and IP that you like and expand on it like I did with Solomon Kane. We still have our long list of " Bucket List" pieces that we have not addressed yet so it's not like there is nothing for us to do