The problems with the kitchen textures is that they are scaled way too big. so everyting looks like a child's toy. See the cupboard on the left. Have you ever seen such big year-lines (don't know the English word) on a plank or a veneer? The second picture, the floor looks almost acceptable, but nevertheless the textures are also too big. Most noticeable on the window frame. Also, lower the ambience on the kitchen textures, everything is lighted too flat. I think that Hoovie's suggestion about lighting will certainly help, too. And try applying the texture on a group in World Space.

-- erlik