1) This looks like a pretty long shot to be a macro. I don't know the technical definition of how close you have to be in order to be considered a macro. Why do you consider this shot a macro?
2) Why did you suppress the flash? The lighting looks pretty subdued, either a very cloudy day, heavy shadows, or late in the day. The flash may have made the colors a little more vivid. For close subjects I use a flash outdoors whenever I can. The fill flash really brings out the colors.
In any case, looks like you have some beautiful flowers to practice on. We've already got the first leaves falling up here. I'm hoping to get out and catch some of the autumn colors this year. I keep hoping that you will post some Texas landscapes and ranch photos. You live in a beautiful piece of God's country that is a world away from mine. I'd love for you to share it in pictures with us sometime.