I liked the quality of the wood material used including the quality of Oak solid wood and the grains. However, there is one drawback in the way the wooden side frame slats are attached to the legs of the bed. Rather than using screws to hold the slats to the main headboard, you could think of using nuts and bolts. This would give us better control of the bed while shifting from one place to another. Also, using Nuts and bolts would ensure the bed frame and the side slats are firmly attached to the bed without making much noise when we sleep on the mattress. My point is to make the bed frame attachment easier to fix and transport without compromising the rigidity of the wooden frames and slats ( like Japanese Joinery). At least in the US, most of them will expect bed frames to be easier to shift from one house to another. I hope you will make some improvements in your design to accommodate the above shortcomings. That will make your product greater acceptance.