not bad

a tip on the smudge ..
only use a smudge tool with selections , in this case you could select the edge of the centervent and smudge down
use the burn tool (darkness) to make the edge more soft and give the impression its go0t depth)
the smudge tool is a tool i use a lot but its tricky only works on nojn ref aereas and you must use selections to avvoid something like you now have a smudged look
