Looks promissing but if you aim for realism then:
- the geometry is of too poor resolution, one can see the individual polygons on the cup
- the plywood texture is of too poor resolution for this kind of coloseup
keep it up :)
here are some improvements, I hope :)
- add more subdivisions
- fix normals and scale of the objects
- add scratches on plywood and create planks to simulate table made from them(I like the things made from nature wood, I don't know how it calls right in English, therefore I stay with the same plywood texture at this time)
- add wall
- "fiddle" with camera settings like DOF, bokeh and focal lenght - still the focused area seams too small to me
- add some irregularity to the cup and saucer material - small water drops from dishwasher which weren't good polished afterwards
- get to know Blender&Corona material creation workflow using nodes
not sure if anyone wants to read these but why not to mention them, right :)