Step 1
Start by creating a new image 300 X 300 with a white background.
Determine two primary colors you want to use. For this particular tutorial we're using #f17400 as our Foreground color and #feff73 as our Background color.
Layers > New Raster Layer... > Ok
On the Tools toolbar, select the Preset Shape Tool (P)
On the Tool Options palette, select the Flower 2 within the Shape list:

Starting from the upper left hand portion of your canvas, draw your flower pattern downwards towards the lower right portion of the screen. For the best effect, don't make it perfectly square! Keep the shape slightly elliptical:

Now lets add some color to this pattern.
On the Layers palette, click on the "+" mark to expand the Vector 1 layer.
Double click on the Flower 2 Layer.
This will bring up the Vector Property window:

Click on the black fill color to bring up the Material Properties window.
Select the Gradient tab and use the following settings:

Click OK to return to the Vector Property window.
Now, place a check mark in Stroke. You'll notice that is now has our Foreground color in it. We don't want to use that, so, click on the orange fill color to bring up the Material Properties window again, and once more select the Gradient tab. Use the following settings:

Click OK to return to the Vector Property window. Set Stroke Width : 4 then click OK:

Your image should now look similar to this:

Layers > Convert to Raster Layer
Selections > Select All [Keyboard shortcut: CTRL + A]
Selections > Float [Keyboard shortcut: CTRL + F]
Selections > Defloat [Keyboard shortcut: CTRL + Shift + F]
Selections > Modify > Contract > Number of pixels: 5 > Okay.

Layers > New Raster Layer... > Ok
This next step is really neat, and adds a whole new dimension to our flower!
On the Materials palette, click on the Foreground color and select the Gradient tab. Click on the image to open the available gradients. Select Fading white and use the following settings:

Use the Flood Fill Tool (F) and fill the selection:

On the Tools toolbar, select the Move Tool (M) and move the image upwards to create a fairly pronounced edge:

Selections > Invert
Now hit the Delete key on your keyboard.
Selections > Select None
Layers > Merge > Merge Down
Your image should now look similar to this:

On your Layers palette, turn the Raster 1 layer opacity down to around 76:

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