That's pretty cool, looks like my first cranked out experimenting images when I got the program. I like the Point of View. Here's some advice, I think you need more and varying surfaces, vary with slope/altitude, and you definitely want more than 3 in this case and probably almost all cases. It's kind of strange to see the really steep parts with green on them. Well that's what I can say from my very small Terragen experience myself :)

Je trouve que pour un premier Travail c'est dtr bien , tu sais dimitles rives et as voir tes textures tu as le sens des manges des textures (plusieurs verts),le conseil que je peux te donner pour ce genre de paysage avec des pentes abruptes, c'est de ne pas mettre ta couleur Me de la me teinte que l'herbe choisie une texture de type roche (GRIS , MARON.....)ensuite dans tes contraintes d'altitude augmente ton Fuzzy (je parle pour ta limite de rive).tu sais il y a des sites qui font de tr bons tutoriels !voilles quelques conseils basic que je peux te donner!!

MJK is right, you have an excellent POV. But this image needs more, vary the colours and texture of your surfaces, it will add more realism in your image. Good luck.

Excellent first attempt! Great point of view (pov) and sky. Try adding more layers to your surface - I see you've started experimenting with that already.

Thank you all for your advice. I will work on it some more later this week and post an update. Thanks again, Paul