How do I choose the best crypto images?

When it comes to selecting the best crypto images, what should I be looking for? Is it all about the aesthetics, or do the images need to convey a specific message? Should I prioritize images that are original or can I use stock photos? Additionally, are there any legal considerations I should be aware of when using crypto images? Ultimately, how do I ensure that the images I choose effectively represent my brand or project in the world of cryptocurrency?