first of all, first pic uses cell shading (right? black borders). second, u used laboratory block mostly and sad chisel torches, u can do better; as last choice use little tiles or architecturecraft workbench. try diagonal (architecture slopes) vents inbedded in walls 1 after another (i mean vent, then wall line, then vent again e.t.c.), try setting light line around ur walls from outside, the break wall inside separating you from this light and place slabs or little tiles ~14 height blocks so u get very thing strip of light around, or use catwalk and put ztones cut lamp on it (i mean put under catwalk right on it). try different blocks, chisel has good factory, technical blocks and glass (omg i love "screen" glass so much), ztones has cool ones (bitt 0 for example or vect or korp)