ok let's start:

1.create new document
500x500 white background.

2.press D and filter>render>Diffrent Clouds
press Cntl+F five times.

3.Filter>Blur>Gaussian Blur
2.0 radius.

4.Filter>Texture>Grain
press Cntl+F three times.

5.Filter>Chrome
Detail 0
Smothing 10 .

6.Cntl+J to dupicate the layer.

7.on the dupicate layer Edit>Transform>Rotate 90 CW.

8. change the mode to Overly.

9.Cntl+U to change the color check the colorsize!
Hue 214
Saturation 61

Done!

this is a end pic



please say THX