Finally found a colour palette generator which suggests additional colours to a group of colours, as opposed to just one colour. I'll often have 2 or 3 colours I like and want a fourth, and found that many palette generators wold only give suggestions based on one colour.
https://coolors.co ...
I just discovered this great blog: http://blog.spoongraphics.co.uk/
This tutorial in particular is mindblowing: how-to-create-a-suicide-squad-inspired-3d-text-effect
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I love the idea of using the clone stamp with a grunge brush. Also the galaxy image and the colour gradient, both set to the Lighten blending mode, really makes the image come to life.
https://www.youtube.com/watch?v=AW-7JrLmBkQ...