Looks great, can’t help but seeing the shader/geometry interaction a bit jelly-like. Have you tried making the textures not staying at the same point on the geometry or moving them in a direction? Right now it looks like very fluid jelly because the texture gets distored and bend to much by the deforming geomety underneath. Also the movement within the bump/normal map is to static or moves in the same place rather than moving towards one direction (which would be the lower part of the deforming geometry. just my 2 cents, great work though.
PS: Maybe a noise variaton on bump strength would also help quite a bit. 