Impossibly contrasty situation so I used ReDynaMix' DynamicPhoto HDR to process this image before bringing it into Photoshop to eke out a bit more detail in the interior. I might add that this image was just a single raw image - I didn't combine any for the hdr effect - just a feature of DynamicPhoto HDR. I sometimes use applications like DynamicPhoto or LucisArt Exposure setting just to bring out shadow detail.