Hello dear employer, let me introduce myself.
I'm an interior designer | architect, with decent knowledge of CAD and BIM software.
I mainly work in ArchiCAD and Google SketchUp for last 3 years.
As I understand your project needs, you already have a raw model and want to improve it. If so, my knowledge of this program is definitely going to come in handy.
I can start working on your project as soon as you send me the model and as long as we discuss some details. Satisfaction of the employer is my higher priority, so I got to know what exactly you want.
Please, check my portfolio to see my ArchiCAD skills (everything is mostly done in 18th version), or contact me if you want more examples, like 3D rendered floor, or just plans done in ArchiCAD and son on.
If you're satisfied with the given quality and price, please, contact me to discuss further details.
Thank you for your time.