First thing I notice is that you have two sets of texture pairs, the two images on the left are a main texture for the uniform, consisting of the front and back, and the arms of the jacket, the two legs of the trousers, and front and back of the gloves, and a matching normal map for that texture. The two textures on the right are a main texture for the hat, and a normal map for the hat. I may be mistaken, but you seem to be missing at least one, and perhaps two other pairs of textures, for the boots and the face.
If the object is all one complete mesh, one approach is import the main mesh and normal textures into new image textures using the texture context button of the properties editor. After you have the images imported into the appropriate textures, switch to the UV editing viewport, open the images in the UV editor, and with the mesh in edit mode, selecting the various parts of the mesh and map them to the corresponding parts of the image. Repeat this for all of the parts of the uniform on both images.
A more detailed description of the steps involved is off topic for this site, but there are many tutorials on UV unwrapping, and it is covered in unit 5 of the Tufts University course by Neil Hirsig. Pay particular attention to video tutorials 05-08 through 05-10.