Unhappy [Q] How to pull data when in Clockworkmod Recovery Mode?

Hi guys

I am running Cyanogenmod 10.2.1 on a Galaxy Nexus GSM. I installed that last year with the easy to use installer.
2 days ago I clicked update on that M3 Snapshot. Since then, the phone is not booting anymore and hanging on the blue loading screen with the cyanogenmod face and the circle around it.

I can boot to Odin and Clockworkmod Recovery.

I installed the Android SDK and the USB adb drivers and it shows the device under "devices" without trouble but not as a storage device so i cant pull data via the windows explorer. I am on Windows 7 Ultimate.

When in CWM Recovery and trying adb pull it says device not authorized. Unfortunetly i switched off usb debugging right before i installed that update.

My question>
I have to save the photos from the internal sd card before i can just wipe everything and reset it to factory setting. How can i do that?

Any chance to get around the "device unauthorized" msg ? Via adb devices i can see the device in the list.

I searched around a lot and kind of out of options now :/