First, I'd like to say that your preview images look excellent. Very good work with the rendering and lighting. I assume this exact scene is set up in the .blend file that people can purchase. I might suggest that you mention that in your description. I think some clients may be interested to purchase the scene file and be able to render the scene with the same render settings and lighting you have in your preview images. It's not necessary to do this, but I've found it can help sometimes.
Also, I notice you include the Vertex count, but not the polygon count information. I'm curious why? Typically, it's good practice to include both vertex and polygon information with the details. Vertex count is really useful for game developers because vertex count has a greater impact on real-time render performance than triangle or quad count. However, vertex counts are rarely accurate in 3d modeling software. Vertex count can be affected by vertex splitting, UV splitting for normal mapping, etc. So in many cases, people like to know the polygon count of a model (quads). This is typically the standard measurement used for performance in GPU and other forms of studio rendering. So I would recommend at least including the quad or polygon count with the vertex count.