Colybrix, thank you very much for your permission that I may translate your tutorials

 Tutorial here

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Colors

Foreground : #4a54a2

Background : #ffffff

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1 -  File - New  875 x 525 pixels transparent

 linear gradient 

 2 - Fill with the linear gradient 

Adjust - Blur - Gaussian blur 25

Layers - Duplicate

Effects  - Distorsion effects - pixelate (186/88)

 3 - Effects - Image effects -  Seamless Tiling

 4 _ Blend mode Multiply

Layers - Merge down

5 - Selection Tool (S) – Custom Selection

Effects 3D - Drop shadow  0, 0, 75, 25, black

Selections none

 6 - Edit - Copy "Pinceau point blanc"

Edit - Paste as a new layer

Pick Tool (k) Position X: 0, Position Y 0

 7 - Effects - Distorsion effects - Spiky Halo

Layers - Duplicate

Image – Mirror Horizontal 

Layers - merge -Merge down

Opacity 80 ( according to your colors)

 8 -  Layers - New raster layer

Fill with white color

Layers – New mask layer from image – creation.tine_masque 088

Layers - Merge - Merge group

 9 -  Effects – User Defined Filter /  Emboss 3

Effects 3D - Drop shadow 2, 10, 50, 15, black

Blend Mode Soft Light

 10 - Open "paysghiver17-coly"  Erase the watermark

Edit - Copy

Edit - Paste as a new layer

Image – Mirror horizontal 

Image – Resize 80%,  all layers not checked

11 - Layers - Duplicate

Effects - Image effects -  Seamless Tiling - Same settings in memory

Adjust - Radial Blur

Layers - Rearrange downwards 3 times

Blend mode Overlay

12 - Move to the top layer (landscape)

Pick Tool (k) : Position X 228, Position Y 5

 Result

 13 - Open"deco"

Edit - Copy

Edit - Paste as a new layer

Don't move

Effects 3D - Drop shadow 2, 10, 50, 15, black

14 - Image - Add borders

1 pixel – dark color

 15 - Selections – Select all

Image –  Add borders

20 pixels – white

Effects 3D - Drop shadow : 0, 0, 75, 25, black

Select none

 16 -  Selection Tool (S) – Custom Selection

Selections - Invert

Edit – Copy

 17 - Selections – Select all

Image – Add borders

25 pixels – white

Selections – Invert

Edit –Paste into selection

Select none

 18 - Open "PelucheHiver1-coly"

Edit - Copy

Edit - Paste as a newl layer

Image - Resize 55%  all layers not checked

Move to the left

Effects 3D - Drop shadow -23, 22, 30, 25 couleur noire

 19 -  Move to the background 

Effects - Illumination Effects - Sunburst with these settings

If you wish, you can change the horizontal and vertical settings, so that the center of the effect is slightly behind the tube, thus not too visible

20 - Add your watermark

Image – Add borders

1 pixel – dark color

Image – Resize 950 pixels

Save Jpeg

If you want, you can send me your version 

 If you have problems, or you find a not worked link, write to me

une autre version avec un tube Puppy de Tine

Thank you so much Narah

Thank you so much Kika