Self-Design Promotional Posters with Rabbit API Site's New Model

Let it help design promotional images, not bad at all. Prompt: Rabbit API site (URL) launched nano-banana-2 model (Google latest image model), this model has even better text understanding capability, Chinese output is also error-free, images are still high-definition; Rabbit site price is 0.21 yuan per use. Help me draw a promotional image to attract users