If you prefer a simpler lighter style then use 3 euros with one rectangle or decorative pillow in front.
How to style a queen bed with pillows.
For this look use 3 plaza quilted euro pillows across the back of the bed and one plaza quilted breakfast pillow lumbar pillow.
Two standard pillows in beige two large decorative pillows and two small textured decorative pillows in a blush hue are stacked upright on top.
My last project was a modern home with transitional decor.
Match your euro shams to your duvet or quilt.
Two bed pillows two standard shams two 26 20 pillows one smaller pillow.
Start with three euros then tow 18 x 18 pillows followed by two 16 x 16 pillows and three 12 x 15 pillows.
Use pillow shams instead of pillowcases to give a more finished look to standard pillows.
Use a pair of large euro square pillows to add height to the bed and layer in pattern or texture.
Here a freshly pressed bright blue quilt is topped with a plush vintage blanket at the foot of the bed.
Place your accent pillows at the forefront of the arrangement either centered or offset slightly.
Center two euro pillows in front of them followed by your two remaining standard pillows.
For reference my bed is a queen but these looks also work on a king sized bed.
Instead of king size pillows use three queen or standard size pillows with shams for the second layer then center two boudoir pillows on the gaps.
Match these to your sheets or use them to layer in another color or pattern.
A good rule of thumb.
This is a more minimalistic look that starts with two bed pillows standing upright then two standard shams and then a trio of decorative pillows.
Formula from back to front.
Note that european squares often coordinate with the duvet in terms of color and pattern.