>>13229436Well the first thing I want to ask is if you know about point perspective. I don't really have any resources on it now, but basically you'll need to know it to apply perspective and foreshortening accurately and it looks like it's missing in your earlier picture.
The "ant's eye" view you're attempting in that regigigas request is achieved with 3 point perspective. I'd start with 1 and 2 point perspective first though, build up your understanding. I drew a really quick picture here but you're better off looking it up.