I need to do some more thinking before I answer the first few questions, so I'll just attempt to answer the last one first.
Lacroix makes me remember that I can and need to dream and laugh and feel overwelmed; be seduced by the frivolity of fantasy.
His fabrics drip with opulence and uber elegance; abundance and gloss; colour and mood; incomparable extraordinary irreverence of imagination.
It reminds me of when I was 10 and would stay up all night playing with a piece of fabric in the mirror and imagining I was some-thing/-where else.
Play and fantasy are for big girls too.
I think that's the beginning of an answer ;)