Bows and knots are really hard to do and take a lot of practice. I gotta agree that yours look great. I have made my own, but now I photograph them and extract. If you photograph it, it will be much easier if you use a background with a contrasting color. If it's pink use green; if it's white use grey or black. Then it will make extracting much easier. I have a tutorial on photographing flowers against a background and extracting them on my website, but it would work well for flowers as well. You can see it here:
http://desjardindigitaldesigns.com/p...tract-a-flower