Looks quite good to me
When I was making the girl critter I also had to use a few tricks in Lightwave to get the shadow properly. It had been more trial&error than anything else, but in the end one should get a satisfactory result. The same applies for any other piece of GFX I used to make.
The consistency of the original assets is indeed very vague, unfortunately it's not only blue pixels around the scenery sprites. One of the best examples of this sloppy work are the thugs with cojones from Fallout 2 (e.g. Mordinos guards in New Reno), their colours washed out completely. Oh, well
Thanks for sharing the blender template!