WELL not really that big. Four Theatre set pieces - 7" x 2,5' x 4". The other larger ones barely over 4 feet on the long side. I have learned to make them much lighter, close to a comparable framed oil painting and about as strong,, but I have material limitations and old age. And the desire to cover as much relief ground as I can. Some of the Big Ones are show stoppers and I hope they end up being shown publicly.
Here is a short video explaining the evolution of a large still life: