First, thank you so much for considering my work.
What comes to color selection, I think, it comes to the feeling you want to evoque. Orange will feel more warm and friendly. Red could be too loud, unless it's used very sparingly in the website. Green (like your 3rd choice, could give you refreshing, calming look). But you don't have to decide on it now and play around during the process of website design. I can provide you with all three color variations, if desired.
Sincerely, Audra