I make blurry nature photos for background needs. Count on f/4.0 the maximum aperture on the lens I use, on manual settings. Then take advantage of focal length 100m.
These nature blur photos were enhanced with a few Photoshop enhancements.
Two images after being placed the logo, HIVE and Stock Images.
May be useful
by Irfan M Nur (@vannour)
Make: SONY ILCE-6500
Lens: SONY 18-105mm F4