Detecting landmark point using fastai

Hi, I’m trying to detect landmark point, I have annotate the landmark point using VGG image annotator. Can help me how to train this landmark point and detect landmark point in new image?

I have added sample annotated file in the below google drive.

https://drive.google.com/drive/folders/10OafM2IjA2W1UfhYS1HYg9vYK2uo_3DU?usp=sharing

Thank You