Above is a photo of my drawing before I began the changes to lower my vantage point. Below, is how it stands now, after the adjustments.
You can see that less of the top surfaces of objects are visible because I lowered my stool. The ellipse at the top of the black vase is shallower, as is the ellipse at the top of the basket. This all took quite a bit of re-measuring. I recalculated the height of my horizon line (my eye-level) and marked it with a long strip of tape at the top of my drawing board. I drew a dot on the tape at my vanishing point (the spot directly in front of my eyes) I made sure that all lines perpendicular to the picture plane (such as the tabletop and far left brick) met at the vanishing point. This is called one-point perspective. Most of the bricks aren’t parallel to the picture plane, so each has its own two vanishing points on the horizon line-one for each plane. This is called two-point perspective. If the angle is sharp enough, I can draw the vanishing point on my horizon line and use a ruler to draw a line at the correct angle on my brick. The vanishing point for the front plane of each brick that is close to being parallel to the picture plane would be far off to the side on the horizon line. I just estimated these angles because its not practical to draw such a long line.
I made a few more adjustments. The paperweight needed to be a bit wider. The crystal was too far to the right, and the black vase wasn’t quite tall enough, so I added a bit of length at the bottom. I drew the shell, and finished drawing the turquoise and dish. Next, I need to draw the weave on the basket, and the details on the paperweight.