Sight is the last sense to go
Brain is the organ that survives the longest amongst all other organs
In short, you turn pale; all the blood in your body settles down on the area closest to ground creating bruises; then body goes cold no heat signature; then rigor mortis sets in i.e. your joints become rigid and position of body cannot be changed; then all organs in your body liquify and bloat your body from inside with fluids and gases; then you start decomposing with scavengers of the the society like maggots, insects and animals feeding on you and breaking you down until you turn in bones