shadow is not right. wat hapnd to the floor? you can use brush to create shadow just decrease the opacity

Or I think Overlay would also work. Make a dark shape and change to overlay blending so that the wood floor texture still shows through

The shadow on the right is too obvious to me

you copied and pasted the shadow and you left the lines from the wood in there..clone stamp or the healing brush will fix it

wrong shadow. and the edges of the mugs also should have shadow.
you can use brush to create shadow.just adjust opacity

Just a little trouble with the wood grain on the far right - but otherwise it is great. Maybe its worth cropping out the problem for now ? Good luck.