It's just bad web practice to post a very large image. You should never have to scroll in both directions. Up and down, sure. Left and right is OK too, but never both. What's the point? I mean, I am impressed that people can render with such largeness, but if I have to scroll around to see it I am not impressed at all. It shows a lack of web experience and a lack of consideration for people with slow connections. Look at any professional gallery and see that you never have to scroll. One of the reasons for that is that large impressive images are easy to steal and print.