General Feedback for EXP1+2 that you should consider for EXP3
Architecture should be thoughtful and thought-out. This includes considering the relationships between architecture and landscape, client spaces and clients, architecture and elevators, architecture and structure.
Attentiveness to clean and neat linework, varying lineweights to produce and hierarchy of elements, accuracy and precision, holistic presentation (how do they read as a set?).
Consider the way you capture your architecture, how it is cropped/framed, how you present your images, the camera angle and the inclusion of foreground+midground+background.
Make sure you include all correct referencing.