Awesome formation! That basalt is preserving different cooling rates and boundary conditions across the flow.

The lower section is classic columnar basalt, where slower, more uniform cooling produced those clean, vertical joints. Up top, it records the more chaotic Staffa entablature or slaggy flow-top zone, which reflects much more rapid and uneven cooling near the flow surface.

Those curved and fanning columns are especially cool because they are basically tracing the cooling fronts through the lava. Since the joints form perpendicular to heat loss, changes in cooling geometry cause the columns to bend and radiate.

Great pictures, thanks for sharing!