Perfect Prompts Needed?

In creating a garden visualizer to help home owners with their landscape decisions, I assumed that I needed to "program" the text prompt perfectly in order to give good results. So spending time tweaking the text descriptions seems natural.

However, after a few days learning about context engineering, I realised I could just send example images and describe what I like or dislike about them. That makes it a lot easier!! Both for me and for GPT!

"Before" Image

Text prompt