there’s DOF on the left but none on the right. I’ve never seen that and didn’t know it was possible. Since DOF depends greatly on the renderer you are using etc it would help a lot to see the scenefile
I can’t see doing it without if you want pipes to remain attached, basically ‘if you want it to look kind of real you have to build it kind of real’ like usual
the cloner is in object/vertex mode and the clones by default are aligning to the normal of the vertexes. Just uncheck Align Clone in the cloner’s Object tab
all the materials are rendering in the Material editor as black which usually means there is a missing texture image – you might have to re-find the images (assuming you have them)