Lookin much better!

Might wanna darken the shadows just a smidgin more.

Also, if you look closely at your bg image, there's already a decent amount of DOF in it, so I'd personally leave the DOF alone

One last thing, you might wanna throw a few bounces of light on your model, one light aiming upwards, and one light aiming the opposide direction of your current key light to lighten the dark-black shadows a bit.
Make the light color the color of the overall ground-bricks.

This will help to tie your model to the bg image a little bit better

Looks great man!