Gster is correct.., it looks like a poster of maria carey.., this does not look like a lighting exercise at all.., Gsters advice about changing it to a early morn lighting set up would be a far greater and rewarding lighting exercise.
(I did read the post.., hence my response.., my 'picture' was also a 'lighting exercise')
im sorry if you are new to maya.., if you are attempting night shots you might look into HDR images and global illumination.., you just cant lower the levels in PS (or where ever) and call it a 'night scene'
so far this one doesn't cut it YET.., good luck
matt, your no dumb chap on line.., thats for sure.., take it easy.., you are one clever dude., take care
take it easy and life will be easy