Hi myself Pragya.
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,
Sketchup, 3DS Max and Solidworks.
I provide all sorts of architectural services, e.g. Site planning, elevation, sections,
accurate 3D model of the space along with 3D rendering etc.
I have gone through your requirement and saw the sketch you have attached. I can give you 2 D plans for the same along with 3D model of it with roof. I will also provide you the realistic rendered view of it once we agree with the final 3D model.
Please refer to my portfolio for some of my work. I can send you my previous 3D models for very similar kind of pavilion with some post. In one particular project, I made a similar pavilion for growing crop with a sky light.
Warm Regards