Luminous mean 1.Softly bright or radiant "a sky luminous with stars" While bright 1.Emitting or reflecting light readily or in large amounts "the sun was bright and hot"; "a bright sunlit room" 2.Having striking colour "bright dress" 3.Having lots of light either natural or artificial the room was bright and airy"; "a stage bright with spotlights" 4.Made smooth and bright by or as if by rubbing; reflecting a sheen or glow "bright silver candlesticks" cowboy...

luminous : 1-shining in the dark; giving out light: luminous paint luminous hands on a clock staring with huge luminous eyes 2-very bright in colour: They painted the door a luminous green. ................................................ Bright : full of light; shining strongly: bright light / sunshine a bright room Her eyes were bright with tears. a bright morning (= with the sun shining)

I'm both luminous and bright :P