I've found in the original pack that there were a couple of repeat tiles (tiles 97 and 98 in the DM's notes file) so I've replaced them with the following graphics.
If you bought through the OBS sites (DriveThru, RPGNow, WargameVault etc) the product will have been automatically updated in your Library. This design may also become available in a free sample pack - to be published shortly.
Hand Drawn Geomorph Tiles on DriveThru: http://bit.ly/IAgeomorph
Thanks for reading. :)