Yes, generally speaking I have found that reducing a prompt to its core elements, converting to json and adding in the desired parameters assists in more consistent generation.
Testing it with your prompts, and continually reducing the parameters until the generation degrades, is also a good way to determine what is and is not superfluous in your prompt.
To keep things on topic, if you and @Daller are interested, I can start a thread specific to using json for Dall-E and we can get into the weeds over there.