You are mixing two different texturing styles, using photo images, and computer graphics.
The photo textures are overexposed by the sun, my suggestion is to recreate the camouflage digitally instead of using the photo textures, it will make the whole model look better.
Try not to mix raster(photo textures) with vector(computer graphics) as they do not play well with each other, either pick vector(easier scale changes) or raster(photo textures)
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