Hi, Myself Pragya.
I have gone through your requirement regarding the walk through you need fro the mall. I can surely assist you regarding it.
I have been working as professional Architect and Interior designer for last 5 years.
I am quite handy with Autocad, 3D modelling software like, Sketch up , Revit, Lumion, 3DS Max and Solidworks.
I can help you with commercial space 3D Modelling.
Please refer to my portfolio for some of my work.
Warm Regard