I have used this brush set for creating a house club flyer, you can see it below. The set contains 26 hibiscus brushes. You can download if from here. Actually this is my favorite flower , so I decided to publish some info about it.
"The genus Hibiscus includes some 200 species, seven of which are regarded as native Hawaiian hibiscus. Although tourists regularly do associate the hibiscus flower with their experiences visiting the US state of Hawai‘i, and the plant family Malvaceae includes a relatively large number of species that are native to the Hawaiian Islands, those flowers presented to or regularly observed by tourists are generally not the native hibiscus flowers."