Here are some examples of Abstract Elements and a description:
This week we offer you a challenge to get out of the ordinary things of life a bit. Abstract art is the one that does not represent reality. This is your opportunity to bend reality!
Just playing around with Particle System. Had to follow a tutorial Bog standard one out there. This is what I made. Tried various things but still learning. Not going to mess around with this much more but can see it would be interesting to introduce into some scenes.