Wow, these designs (including the others you've posted) are phenomenal! It's unfortunate that the game had its plug pulled, it would have been really interesting to see some of these designs translated into 3D.
It's character design - the kind of thing that's supposed to be used as reference. In such work, one doesn't necessarily strive for dynamism or unique perspective, one strives for clarity, so that other people working on the project can look at the design and see how it is constructed. Sure, you probably wouldn't use one of these design pics as a poster in a magazine, but then again, that's not what they're for.
Exactly! In character design (or any concept art related work) it's about getting the details to convey an idea as quickly as possible. These ones were still apart of the exploratory stage. The characters that were picked, I did do more polish on them, as you do want a nice image that helps inspire and direct the modelers when it's handed to them. I'll be posting some of the more polished ones soon.