Lumion Viewer is one possibility for presenting a project. The advantage of using Lumion Viewer is that the client can walk around and explore the scene created.

Lumion Viewer is a separate application available for licensed Pro users. You can provide a Viewer installer for a client to install the base viewer application on their system. The client then double-clicks or uses Open File from the Viewer to open the project.

This all sounds really great but, on the other hand, the client needs to download and install a file of almost 6GB plus the scene. On top of this, the client needs to have a good graphic card otherwise the viewport will literally drag, begging for more resources.

However, this option may prove useful at meetings with the client where you can demonstrate the work in progress and receive valuable feedback.