Hum,
You can probably start by tweaking the principled shader to a red/pink color with low roughness ,
Maybe a bit of subsurface scattering, something similar to what you have with the skin , but different color and lower roughness.
That will be a bit better , but probably look like plastic because it will lack these kind of vertical patterns :
But for that the best option would be to retopo the model and do a proper UV unwrap. And either paint the texture , or tweak an existing one in order to make a bump map.
With vertex paint you can probably do some color variation, but the mesh will probably lack some definition to make these pattern.