The spells Lower terrain and Raise terrain (or is it heighten terrain? along with create mountain should have better and cleaner graphics, Especially when used around shores and mountains.

If you use them in mountains or mountain ranges (to make the mountain passable) you will disable yourself seeing where you are able to walk due to mountainsides and mountaintiles being improperly represented.

If you use said spells near shores it makes the water graphics blend with the land graphics, and while this have a less severe impact on gameplay it is "bad eyecandy".

On a sidenote, hope you fix those river tiles that have no visual effect.

I could further test the subject, but am abit tired of the lategame crashes of Elemental.

Sincerely
~ Kongdej