Texture looks like water

Unity Engine
1

After creating a Normal map and a Specularity map and putting it all together with a diffuse map in unity the material looks really wierd, kinda like water

Am I doing something wrong? Using the wrong maps (There are more) ?

(I am using GIMP’s InsaneBump)

This is how I put everything

2

Height map is not specularity. You should choose the Standard Specular shader, and then plug your specularity map in there.