do you have a base model that matches that picture already?
PS - this is going to be harder than i think, i forgot that if the shoe is transparent, the feet must be 'there', since most shoes are made with the feet and shoe mesh 'glued' this is will be really hard, we are going to need a sim 4 outside model (just the shoe model) than import, this part is ok, but we still need the feet UP (heel position) without the shoe itself, i think we could try to use a open heel sandals (with a exposed feet) then delete the mesh we dont want and apend the new model, what you think?