I like the shapes of the spots on that Giraffe it seems to be a variation on the normal regular splodge pattern on other Giraffes. Also I like the blend that goes on underneath.
Sort of like this, but different at the same time.
For the texture I use Mr Surfacer applied with a sponge and cut/sanded flat afterwards.
The sponge sticks a little and provides a core for the larger flat areas that are raised above the plastic. Giving a nice heavy Sandcast texture.