create a photorealistic product photograph by adding realistic oak material and studio lighting to the supplied 3d screenshot treat the screenshot as fixed geometry not as design inspiration geometry preservation is the highest priority preserve the exact silhouettes dimensions proportions thickness positions and camera perspective of all three objects each object is a flat constant thickness wooden slab with straight vertical outer sides a flat bottom and a flat upper surface surrounding a milled concave recess the bottom footprint must be identical to the top footprint do not taper curve or slope the outer sides do not turn the slabs into raised bowls or pedestal forms keep both square slabs square and the rectangular slab elongated preserve the exact opening contours recess depths and curved interior profiles shown in the screenshot do not enlarge deepen reshape or round off the recesses keep the outer corners and edges as modelled no raised rims bevels or additional edge rounding material natural solid oak warm light oak colour realistic fine grain and pores on the elongated slab the grain runs parallel to its longer side grain remains continuous between the flat top and the milled interior surface finish fully matte smoothly sanded oak with a natural unfinished appearance no gloss satin sheen shiny varnish polished reflections or bright specular highlights the milled interiors are almost smooth cnc toolpath traces are extremely faint and barely visible detectable only on close inspection no pronounced concentric rings ridges stepped contours or decorative grooves add a few walnuts to the front left bowl only without obscuring its shape leave the other bowls empty neutral light grey studio background and surface broad soft diffused lighting and gentle contact shadows keep all three objects sharply in focus change only material lighting and background preserve the original geometry exactly