butt chest_tuft dock_(anatomy) eyes_closed feathered_wings feathers featureless_crotch female feral flower hair hooves long_hair outdoors pink_hair plant pony_diffusion_(model) rear_view smile solo spread_wings standing_in_water tuft underhoof water waterfall wet wet_hair wings tyto4tme4l my_little_pony fluttershy_(mlp) equid equine horse mammal pegasus pony hi_res
I've tried to get a detailed background from Pony Diffusion V6 XL and I think it has worked very well. I love the red flowers in the corner, they balance out the composition and add some intense color to the picture, which is otherwise pretty mild in this regard.