The spider character is contained with textures and all in a single blend file. The rig is a simple IK rig for the legs that makes it easy to get a good looking animation down pretty quick. Search youtube for spider animation if you need movement reference. The textures are pretty high detail. The displacements is added under a subsurf modifier, so there are also the freedom to go low-poly and edit the silhouette pretty easy. The legs, eyes and body are 3 separate meshes hold together via the armature, and the fur is also separated between the legs and the body. Feel free to tweak the groom further!
All displacements are texture based and not saved in a multiresolution modifier, so if you want to export the spider to another 3D package, it should be quite straight forward!