Attached Link: http://www.eovia.com/solutions/gallery/gallery.asp

They aren't always prompt at updating their website but there is a gallery, albeit not as easy to find as it should be. The link is from the community/forum page. For what you are after, Carrara is probably the best program in its price range and its landscape capabilities now compare well with Terragen. See the landscape tutorial here http://www.eovia.com/resources/carrara_tutorials/carrara_tutorials.asp by cajomi or his gallery entries here at Renderosity. On app updates, I find the regularity sometimes irritating as I'm on dial up (and it suggests sloppy programming) but certainly Eovia do their best to address problems encountered by the users promptly.