I love the idea here, this is one of my favorites. I like the use of color working together, and I like the use of the filter or editor you used on this. It gives it a very artistic look.

I might personaly crop this one differently, horazontaly rather than vericaly, but I also like this direction. It lends itself to use on a card front or as a large wall picture as it has more space on the sides and is not just the flowers and vase. This is a very good thing. Though, I might pull back and include the vase if you are going to take it this direction, this way the eye doesn't wonder looking for the rest of the vase and it's more symetrical. Watch out for items in the background like above the flowers that you might not notice when takeing the pictures. :)