The inside circle has no changes
Fill 0% on the layers
Use the instrument PenTool to draw one more flower's silhouette with the shown parameters below:

Illustration with flowers and butterflies in Photoshop

The flower's petals
Apply Gradient Overlay:

Illustration with flowers and butterflies in Photoshop

Gradient's parameters:

Illustration with flowers and butterflies in Photoshop

Fill=0% in layers
Displaced petals' outline
Copy the flower silhouette's layer and Fill=0% on the copied layer. Displace, using of the function Free transform. Apply the parameters below.Apply Stroke:

Illustration with flowers and butterflies in Photoshop

The inside circle
Using the instrument EllipseTool, draw a circle (FFDB56) within the flower.
Continue.Now we shall copy the small flower's layer and change its dimension with Free Transform function. Set everything out like in the picture (not forgetting to place the layers one under the others):

Illustration with flowers and butterflies in Photoshop

We'll add several butterflies to our composition.Use the instrument PenTool to draw a butterfly's silhouette with the color FFF3F

Illustration with flowers and butterflies in Photoshop

Copy
the butterfly's layer, change its dimension, using Free Transform option. The color should be FE9901. Place everything like in the picture:

Illustration with flowers and butterflies in Photoshop

Copy the butterfly's layer, change its dimension, using Free Transform option and the color must be FDFA79. Place everything like it is shown in the picture:

Illustration with flowers and butterflies in Photoshop

Using the instrument PenTool, draw a butterfly's silhouette with the color FFB011.

Illustration with flowers and butterflies in Photoshop

Using the same instrument, create a new butterfly's silhouette with the color FEFE3E

Illustration with flowers and butterflies in Photoshop

Copy the butterfly's silhouette, change its dimension with Free Transform function and the color should be FFDD57. set everything out like in the picture.

Illustration with flowers and butterflies in Photoshop

Crate a new layer and place it above the rest of the layers, but in front of the butterflies' layers. They should be above all the rest. Take the brush BrushTool, opacity – 10% and the color code FFFF3F and with big dimension, click 3-4 times on the mouse.

Illustration with flowers and butterflies in Photoshop

The final result.

Download PSD file.