I need feedback about my work

[starlight2004]

Hi.
This few examples of my work. I'm very open to suggestions and comments.
Thanks.

http://www.mattestudios.com/pictures/moonlight_authored.jpg
http://www.mattestudios.com/pictures/matte_castle_full.jpg
http://www.mattestudios.com/pictures/matte_babylon_full.jpg
http://www.mattestudios.com/pictures/matte_volcano_full.jpg
http://www.mattestudios.com/pictures/matte_verona_full.jpg

[AliK]

Beautiful composition and good color palette.
The third one is my favorite.
In some cases the scales don’t look realistic compare to each others.
Overall very good job

[Ross Forster]

I agree... I love the colors of the fifth one down. Some nice work you have there.