OK, let's start with first things first.
NO...NO and NO!!!!!!!
First off, I would like to know who is thinking of taking you, who just finished Intro in MX and you OW father on a guided dive in a high flow system to do some "jumps and stuff". Seriously, post their name here, so that we can make sure that they are dealt with accordingly within the community.
Next, taking a camera on your first dives to a high flow system right after Intro...BAD idea. Devil's Ear is like nothing you experienced in Mexico. The flow is ripping, and you can get yourself into trouble fast without excellent technique. Having never dove in the system, trust me, you are in no way prepared to be taking your camera on cave dives there. Now if you want to do down to the log and take a few photos from there and then go put the camera away, probably not an issue. If, however, you are thinking of taking the camera into the cave on your "guided tour", DON'T.
I've photographed the Devil's Ear and taken the camera into the cave, but not until I had my Full Cave training and many dives in the system. Even now, we never take it more than 200-300 feet into the system. I think if you ask anyone who has photographed in the cave, they will tell you it is no place to bring your camera without much more experience than you have now.
If it sounds like I'm being harsh, GOOD. We've had too many people thinking that they can get away with crap like this. In fact, the last Intro and OW divers that I know of that went into a cave where neither belonged are dead. Their waterlogged, bleeding bodies were dragged out of the cave. When their masks and hoods were taken off the blood splattered everywhere, their eyes were bleeding, their noses and mouths, and oh yeah, THEY WERE DEAD!!!!!!!!! Their families are now without husbands and fathers, cave diving at local sites is being reexamined, it's not good times. Hell, they even posted questions about how best to go about killing themselves online, and there are many people kicking themselves that they didn't do more to stop them. (although, there were plenty who tried to stop them)
So, wise the F up!!
And for those who are going to pipe in and say, "give the poor guy a break," save it. This is cave diving, not preschool and bad ideas need strong condemnation.