Actually, based on the prompt you provided, it does not indicate whether you are a native speaker or a non-native speaker. The prompt describes a woman sitting on a stool, and the language used is neutral and does not indicate the speaker's language proficiency.

(nsfw:1.5),crumples, illustration, 3d, sepia, painting, cartoons, sketch, (worst quality:2), (low quality:2), (normal quality:2), lowres, bad anatomy, bad hands, normal quality, ((monochrome)), ((grayscale:1.2)), futanari, full-package_futanari, penis_from_girl, newhalf, collapsed eyeshadow, multiple eyebrows, vaginas in breasts,holes on breasts, fleckles, stretched nipples, gigantic penis, nipples on buttocks, analog, analogphoto, signatre, logo,2 faces