It's really just a screen-capped picture of what the website can do. I haven't ever shared actual photos of the paintings on the internet, but it's easy to get the basic idea of what they would look like. The settings on the website are really adjustable, but it can be a little hard to manipulate where you want things to go or end up, if the sliders are tweaked the wrong way.
I hope you're able to get a better computer. It really sucks that a fellow painter can't see it! Oils are better anyway. And thanks.