Recommendations:
1.0 weight
grey background, simple background would do better style because of dataset peculiarity
(narrowed eyes:1.2) for, obviously, narrowed (thin) eyes
You can use these LoRAs for any penis you want:
Erect Horse Penis LoRA for erect horse penises
Flaccid Horse Penis LoRA for flaccid horse penises
Veiny Penis LoRA for erect human penises
Large Flaccid LoRA for flaccid human penises
This belongs to TroubleDarkness https://civitai.com/user/TroubleDarkness/models