Practice, practice, practice
Jeff,
Those are some nice bugs - wish my first attempt came out that nice.
You did a nice job keeping the hook gap clear of deer hair and the symmetry of the bug's body is good both from the side view and the top view. Looks like you have some good quality deer hair for spinning - probably the most important thing.
Did you just spin bunches of hair or did you pack them? I think your bug body could be a bit more dense. It's tough to tell from the photo, but it looks like you used some black deer hair for the bug's eyes. You could always cut a little indentation with your scissors after you are done trimming the bug and then glue some doll eyes into them.
Trimming a deer hair bug is just a matter of practice, practice, practice. Remember you can always bend the razor blade to help you cut curves on the bug. I like to use a razor blade to get a nice flat bottom, then I rough shape the bug with curved scissors, and "smooth" it out with the razor blade.
Hope this helps,
Alberto