I applied to join the DALLE beta a few months ago and never thought I'd get accepted lol. Some of the early testers were putting out some pretty incredible results and so many people applied I never thought I'g get in.
It has been a bit hit or miss, you have to tweak the text prompts and wording to get something cool, and sometimes it's a complete flop, but what I have found amazing is that it can create photorealistic images much better than any AI art app I've tried. One caveat is that they have quite a list of banned things you can't do, anything related to nudity, gore, or deepfakes. I understand that it's a pretty powerful AI so they don't want any of that stuff being made with their product.
I have 50 prompts per day (each one gives 6 results) so I am willing to run some ideas for you if you are interested. Here are some of my favorites, I will include the prompts so you can have an idea how it works, usually being very descriptive is better.
A collage in black, white and red, with newspaper clippings and fashion models with three eyes
a psychedelic man with a beard astral projecting into the 5th density of consciousness, 4k photograph
a photographic portrait from the waist up of someone wearing a creepy mask made of wood and flowers
a colorful collage by Hannah Hoch
a botanical drawing of an alien with anatomical labels
a daguerreotype depicting the first alien visit to earth
Leave your suggestion in the comments and I'll try to do as many as I can :D