Sweet Jesus WHY!?!
We're above and beyond pointing out the obvious glaring anatomy mistakes, the crimes against perspective and the widely-spread foot mutation.
Liefeld is probably not the worst artist in existence, or the worst artist in the business. I'd describe him as simply untrained and undisciplined. What is annoying to me is how this obviously amateur artist can consistently find high-profile work in the industry's top company and attract the most competent writers to produce scripts for him to wreck. After all ,this guy has drawn for every major name in the business, from Jeph Loeb to Joe Casey and from Robert Kirkman to Alan Moore himself!
Marvel at more preview art over at NEWSARAMA