Frank, I see the background too bright :
# 1 it makes it more present and therefore, distracting.
# 2 perhaps the metering mode was on matrix metering which was influenced by the bright background ? (I'am just wondering as there's no exifs displayed)
# 3 so the main subject is consequently dark.
My suggestion : using the center weighted metering would have enhanced the lighting of main subject and darkened the background.
What do you think ?
Francis.