>>11308074
>Size: 488x488
First off, that resolution won't be giving you great results with an SDXL model.
Turn off hiresfix and do your base gens at 1024x1024.

>hotdogPonyMixXL_v7
That's an older pony model, and it's a finetune - some of them have a lot of trouble with certain concepts depending on how they were trained.
These days most folks are switching to Illustrious or NoobAi models, which tend to be more flexible.
I like NoobAi models myself, because I use the e621 tags/dataset for a lot of concepts that aren't well tagged in danbooru.
Here's a catbox for the base gen of this image, made with the noobAI model I'm currently using most often:
https://files.catbox.moe/a9xa2f.png