Not seeing it. The scaffolding on the bottom sub is ~twice the length of the VLS section. The gap in the shadow is the bit behind the VLS. So potentially room for 2-4 more rows IMHO. Not saying they're actually there, though.
The scaffolding at the VLS section of the bottom boat is actually longer towards the front (and past the rear base edge of the sail structure) than the ones on the top boat. At 200% magnification, I measured about 9cm for the bottom boat's VLS section scaffolding, and about 7cm for the top boat ones.
With the same magnification, I measured about 13-13.5cm for the sail structure base's length.
However, courtesy of some discussions on Weibo regarding the latest satellite photos of the 093B SSNs, there are these parts which I have missed:
#1 are the sail structures of both boats.
#2 circled in green is the 3x4 VLS tubes which we've seen on the satellite photo. The rough location of the same 3x4 VLS section on the top boat is indicated by #3 circled in yellow.
However, there's the section that is marked #5 and circled in orange for both boats that are located right behind the 3x4 VLS section on the bottom boat which looks like blue/grey-ish empty racks that consists of 3 columns. The length of the 3x4 VLS section (marked #2) is also nearly same as the empty rack section (marked #5) for the bottom boat (which is about 3cm for both sections).
#4 markings indicate roughly the spacings between the rear edge of sail structure base (marked #1) and the front edge of the 3x4 VLS section (marked #2) for the bottom boat.
If anything - More people on Weibo are pointing out that there is an additional 3x3 or 3x4 empty VLS tubes located right behind the 3x4 VLS section, which already had their VLS tubes installed when this photo was taken (hence the visible orange caps/tube covers).
Therefore, we could indeed be looking at the 093B SSNs that are either equipped with 3x6 = 18 VLS tubes or 3x8 = 24 VLS tubes.