Open a transparent image of 700x550,  this is your working image.
Put your foreground color on: #9a99c1
Put your background color on:  #f2f1f7
Make with your foreground color a gradient, lineair, angle 45, repeats 1
Floodfill your working image with the gradient.

Copy your overlay and paste as new layer.
Put it into the right down corner, density 88%.
See preview:

Copy the tube of the eye and paste as new layer.
Put it to the left, see my original preview, luminance L, density 37.

Activate the tube of the woman, and remove the watermark.
Layer, load mask from disk, 20-20:

Merge, merge group.

Copy the tube and paste as new layer on your working image.
Put it to the right side of the working image, see my original preview.
Blendmode luminance L.

See if everything is correct on its place and merge all layers.

Add border 1 pix #393b4a
Add border 50 pix #a1a1b9
Select that border with your magic wand:



Filter Pentacom dot and cross:  70  10  2
Invert selection.
Dropshadow:   2  2 50 5 Black
Dropshadow:  -2 -2 50 5 Black
Deselect.

New rasterlayer.
Selections, select all.
Selections, modify contract by 15 pix
Fill that selection with color: #a1a1b9
Selection modify contract by 15 pix
Push delete on your keyboard.
Deselect.

Filter Graphics Plus  Cross shadow all sliders on 50 but the two at the bottom on 128
Edge effects, enhance.

Copy the text and paste as new layer, or make your own text.

Put your name and or watermark on your creation and add a border of 1 pix color #393b4a

Ajust --> brightness and contrast --> brightness 1

Save as  .jpg