animal_genitalia animal_penis anthro black_body black_fur black_hair black_penis blurred_background canine_genitalia canine_penis countershading fur genitals hair knot light_grey_fur looking_at_viewer male orange_eyes orange_sclera outdoors penis purple_hair reverse_countershading solo speckled speckled_body spots uverage_(director) canid canine fox mammal red_fox silver_fox absurd_res hi_res
This is the base prompt, then I touched it up a bit and upscaled.
[code]parameters

three-quarter portrait,

solo, male anthro silver fox, nude,
vanishing point,

rolling eyes,
black hair, side cut, purple highlights,
(black fur with white specks:1.2), (orange sclera, slit pupils, black pupil:1.1), (speckled body:1.0), (white freckles:1.2),
physically fit, tall, (muscular:0.2),
digitigrade legs,
(canine penis:1.2), tapering penis, knotted penis, (heavy:0.7) balls,
,

the elysian fields environment, afternoon,
black penis,

by wildering,

by darkgem,

Negative prompt: (signature, patreon logo:1.2), bad anatomy, white sclera,
Steps: 50, Sampler: Euler a, CFG scale: 7, Seed: 1314276362, Size: 768x1024, Model hash: 821628644e, Model: EasyFluffV11.2, Version: v1.6.0[/code]