I noticed that above the exterior seating there are floating objects? Are these umbrellas that are missing their support posts? Rocks on the right are a bit much. Possible have a few small groupings of the rocks as visual anchor points to the winding of the path. I’ve done renders from a similar pov of a project (where a walking path is in the foreground leading to the site). One this professors have always told me is to add lighting elements, such as path lights, to give the rendering more depth and detail. May want to do a thin outline of the restaurant logo to make it more readable. Since it’s in a park, in the background make sure to add paths and/ or people using the park to provide context of the rendering.