How much do you know about configuring fluxbox?
For starters if you want your toolbar on the top left, as in the pictures, right click on your toolbar, go to placement, and select top left (or anywhere else you would like it).
To change gtk themes in fluxbox I like to use lxappearance.
apt-get install lxappearance (or however you install in your distro if it is not already installed)
From the cli just type lxappearance and then select the theme you want.
If you know what theme is used just search for it, download and install. Or go to some place like www.gnome-look.org
and find a gtk theme that resembles the one you want. Install it (extract it) into the .themes folder in your home directory. It should then show up in lxappearance where you can select it.
Go to www.box-look.org
and look for a fluxbox style that you like. Download it and extract it into your ~/.fluxbox/styles folder. You should then be able to select it from the menu. Again if you know which style they are using you can just search for that particular style.