Recently got into trying realistic model, let me know what you think and where I can improve?

Recently got into trying realistic model, let me know what you think and where I can improve? picture 1 of 3
Recently got into trying realistic model, let me know what you think and where I can improve? picture 2 of 3
Recently got into trying realistic model, let me know what you think and where I can improve? picture 3 of 3