Help Needed

I trained this using 90 images from the 2eros Instagram account. I can see the underwear properly generated but the face of the models are just not good. Should I train my style on a good checkpoint instead of the base model runwayml/stable-diffusion-v1-5 ?

Prompt: in the style of 2eros_underwear

Class: underwear style

This is the Google Colab I used https://colab.research.google.com/github/sagiodev/stablediffusion_webui/blob/master/DreamBooth_Stable_Diffusion_SDA.ipynb