240729_184412_a
240802_194649_C
240802_194649_D
240803_194912_C
240803_194912_D
240804_024830_M
240804_024830_N
240804_044736_C
240804_044736_D
240804_084558_M
240804_084558_N
240804_114730_M
240804_114730_N
240804_134818_C
240804_134818_D
240805_014846_C
240805_014846_D
240806_044738_C
240806_044738_D
(vcos .(height-normal ..(vsqrt velvet)))