Flower brushes for Photoshop, Photoshop elements, PSP, Indesign, PSP, Affinity Photo etc gallery (Volume 147) 160 Flower brushes / Strokes EPS format
If you want to create some more flower brushes, perhaps to any size, then the flower custom shapes may be of interest or the flower fonts (assuming that you may be using other tools and not just Photoshop) You can recolor the flower brushes as well as add textures to the artwork by using patterns such as dot patterns and diagonal patterns
If you want to find out how to install / load the brushes into Photoshop (such as the flower brushes) etc as well as perhaps use them with blending modes and brushes in Photoshop then those sections maybe of interest and use
Flower brushes gallery (Volume 146) 100 Strokes EPS + bonus ABR format.
Photoshop flower brushes gallery (Volume 18) 100 Artworks ABR + PNG format