It looks amazing! Thanks so much! May I ask a few thing that you could add? I've not made much changes if you can spot them. :) http://oi50.*.com/1zc1qwx.jpg
Hi-res isn't free any more, but it's fairly cheap compared to other maps.
If you don't want to pay, a normal HGSS one is fine, but I'll make it the same size as the image you posted (perhaps slightly taller), not the size you requested. :)