Help regarding project

Hello everyone,
I’ve been working on project titled ‘posture detection system’. The aim is to develop a model that tells whether the human pose is correct or not. The detection is not real time i.e. we will be training our model on a dataset having ‘good’ and ‘bad’ postures. We are quite puzzled about the roadmap we should follow (from gathering the dataset to choosing and training the model).

Advices are most welcome…