Remove Reflections

I don’t know the original image but I suspect what you call »reflections caused by the chairs« are actually the »see-through« of the glass-plate.

I recommend you make

• a Group with the overall Layer Mask and inside that

• a Layer with a Layer Mask for all fully opaque elements and

• Smart Object instances with Blend If-settings in Groups with Color Overlays to salvage what you can of the glasses highlights and shadows and

• on separate semi-transparent Layers paint in what else is necessary

It is difficult to assess the image sharpness in your image but if it is crisp, you may consider creating a mask of the objects where they sit on the glass ands the legs that show through them, then replacing the glass with a suitable flat tone or gray gradient.