Hi everyone. I am going to do a cake with greenish fondant. The setting is kind of like in a valley with green grass. I found this and I love the effect of the coloring with different shades of green and yellow which makes it look more vibrant and not dull:

http://www.panari.co.uk/product_images/c/739/TINKERBELL_CAKE_CI0527__44080_zoom.jpg

I was hoping someone could let me know how it was done. I don't know if airbrushing was involved but hopefully not, because I would like to achieve a similar effect without an airbrush. Any ideas/suggestions would be very much appreciated.

AThat definitely looks like airbrushing.

You could try the wilton spray cans, but I've never used them so I'm not sure if the spray covers a large area or if they can do smaller patches (if that makes sense.)

Or you could dry using petal dusts. Not quite the same look but if you'd still get some colour variation.

Sponging?

AI agree that it's been airbrushed but you can buy the spray colors in the can as another person suggested or sponge it on using food coloring that's been diluted with vodka.

When sponging with vodka, will it give a "wet" look or will it dry? 

AIt will dry. The vodka evaporates.