Nice work! I think as soon as there is material separation, the impression of being on a water vessel won't be there any more. Especially with concrete material on pillars and parts of the walls. The concrete elements could be a bit larger, as these are the structurally supporting elements.
Are you sure it's not a texture seam? It looks like the side of the concrete is slightly darker in your texture map. Try disabling the concrete overlay in photoshop and rendering again with just the AO texture.
Is this metal or concrete? The latest pic, with the new normals, looks more like concrete, but it has screws in it, so not sure. Beyond that, the subtle variation in there works well and I dig the dirt buildup.
Texel density is all over the shop, the cracks on the concrete part are far too dark, theres no AO, and where the concrete pieces meet the ground is far too harsh with zero blending.
There are tons of videos describing how to build concrete block walls. I think I watched most of them before working on my foundation for my old house. Google search "laying concrete block" , "laying brick" or even "concrete slab wall construction" Actually I find the stuff interesting, and can now build house foundations…
Great point... i was wondering why I disliked it for concrete. Thanks for that. I'll do another concrete tomorrow I'll remember this normal map for when i decide to do leather :) cheers