People are being a tad over the top in their reviews considering this is only the first page of something; you can't judge the entire story based on the first page. It's silly to say he's being too cruel, you have no idea what's happening in the story, how do you know it's not absolutely required? Your first reviewer was clearly an imbecile of the highest proportions, too.
That aside, you did as you intended; this first page hits hard and definitely draws the reader in. You immediately want to see this guy brought to brutal justice. The art itself is very aesthetically pleasing, the medium used masterfully, and it's well structured as a comic, too. I'm eager to see the next page!