You must be kidding. A DNA mutation is precisely analogous to a software mutation. Let your PC run for a few million years making copies of the same program over and over. Have the PC stop making copies whenever a program becomes mutated through a bad copy. Now run that program. A million times out of a million, that mutated program will fail to perform as well (read: survive) as its non-mutated copies. Rarely, a software mutation might give useful functionality to the mutated copy, but it is pretty certain not to happen twice or multiple times in a row.
Moreover, looking at similar versions over time doesn't tell us if the species mutated by itself or if it was changed by a designer (ala automobiles). What you've cited could far more easily be evidence of gradual improvements from a designer than it could be evidence of successive, successful random mutations.
You might as well post pictures of rather similar models of Camaroes or Corvettes and claim that those pictures are evidence of the cars evolving, for you'd stand just as much chance of being correct.
Computers simulate evolution all the time. You've got to stop getting all your science from ICR and Answers In Genesis. (Does that answer your question about what I think your religious motivation consists of? I repeat, people don't bend over backwards for nothing.)