Step 1: Preparing the sketches
On Vcarve I created a new file, with the dimensions of my wood scrap, and then imported the new ai file. I scaled all the little things using the scale tool in Vcarve, and alined them to fit to the shape of my wood, and also the plyboo's fiber direction.
I used 1/8 inch bit to cut all the shapes, including the tree's fruits, and 1/16 to cut the buildings' windows. It takes ages to cut the windows, but the corners are quite accurate and beautiful. I only cut 0.08 inch deep for the windows, to save some time, and also it looked nicer than deeper cuts (the entire wood is 0.7 inch).
Do not forget to set enough tabs (two for the buildings, one for the rest).