It's okay. Reroute a few cables.. The 8pin connector on mobo for instance plus one cable from your DVD drive (by the looks of it), and maybe pull the others so that only the necessary length of them is showing, hiding the rest behind the mobo.
looks cleaner then mine, i have some fan wires crammed around in mine, looks a little crappy but my case is in a closet and nobody can see it. I don't bother getting to picky about it cause i remove my side case a lot and it'd be a pain to put wires back carefully every time.
Really makes little difference now, with sata cords so thin you can hide those behind the motherboard and its pretty good. the crappy ATA hard drive connector days it was a painful mess to keep things clutter free.
I don't like to bend down my cords too much anyways or they may break so i just let them sit where they want.