I like this method - I think it might be faster to color the flower this way than using the blob brush. I have problems identifying the shapes though - it is not something that comes easy to me. I find my flower is a bit too flat. I tried adding some lines on the yellow petals to suggest the bend in the petals and add some interest, but I did not like the result. Here is the photo I used as inspiration. Thanks Erica!
I also tried a daffodil. I think it looks more 3d that the rose.