*Activate your Gwen S8 tube and choose 2
colours from your image a dark background colour and a light foreground
colour.
I choose #d0d3e3 as my foreground colour and #685f86 as my background
colour.
Put your foreground at gradient with these settings:
Fill
your image wiht your gradient.
*Adjust/Add~Remove Noise/Add Noise with these settings:
*Turn back the opacity of this layer to 66%.
*Go to your Gwen S8 tube and resize it make it 440 px high.
Copy your tube and paste it as a new layer on your 550 x 450 image.
*Move your tube to the right see my tag as example.
*Turn back the opacity of this layer back to 50% and the Blend Mode to Luminance
(Legacy).