The set-up - note that the jar has been resized down in PaintShop Pro - it was originally the same size as the scuttle, creating a conflict of interest between the two major components of the composition. You can clearly see where I merged the layers on top of the left-most kumquat!
The next task is to interpret the colours in the subject. To that end I reduce the photograph to 16 colours in PaintShop Pro.
Next I start to develop the porcelain jar, using a range of Rembrandt greys from lightest through about four darker shades. I also make use of the Rembrandt blue-grey shades to obtain a greater sublety in the colours; all are blended by finger. The darks surrounding the jar are in the main the darkest neutral grey by Schminke, which is a very warm grey, to contrast with the cool greys of the jar; this will also harmonise with the colours of the brass scuttle, assuming I continue to use it behind that section.
To be continued.....