It's the same top, just different modeling and lighting.

The paneling in the top picture only looks different from the bottom because the model in the top picture is wearing a white bikini underneath, so the white is making it look like there is heavier stripes in the top. The model in the second picture is either wearing a nude bra or no bra, so you can completely see through to what appears to be skin.
somewhere between fine and medium texture
average porosity underneath, fairly high porosity in the canopy

cowash: Suave Tropical Coconut
rinse-out: GFTN, One-C
styling: LALSG, EcoStyler, Deva Styling Cream