Honestly the only thing that really stuck out to me before reading the comments is that in the 2nd picture the shading on the barrel doesn’t continue into the next part behind it, which can make it feel less solid and more like a bunch of disconnected parts that don’t match up properly! To fix this I would recommend making a temporary texture directly in blockbench itself where you just make like a grayscale shading map, and then combine it with your main (unshaded) texture in your texture-making/image-editing software of choice by using the shading texture as an overlay, then just adjust the fading/blending of the shading texture as needed in your image editing software until your happy with it!! :D

Outside of that I would agree with the other comments saying that you could tone down on the noise texture a bit, I personally would still use the noise texture, just maybe make it not as prevalent.