Ponydiffusion is an excellent model for 2d content, but it seems rather inconsistent with 3d. This model is designed to more consistently produce photorealistic 3d images of a variety of subjects. Currently, the beta version still produces a more CGI effect as I do not believe I have enough sample images, but hopefully future versions will be more realistic. I would recommend checking the description of each version to see what it does and what its drawbacks are for the time being for more detailed info.
Description
Trained on about 300 images at 512X512. Seems to lack detail and produces overly bright images of certain subjects. Should be capable of producing a wide range subjects at a somewhat photorealistic 3d style, but still seems closer to cgi than photography. I would recommend using negative prompts to exclude less realistic styles like "source_anime" and "cgi". Also has difficulty generating portraits of women, as it makes them look like men for some reason.