Dark Horse!
Bravo! This is off to a terrific start.
The comic book style you're using here is terrific. I remember many discussions back on yakface a few years ago about the benefits of the comic book style vs. the traditional "single frame" layout and I think the comic book style really adds a lot.
Great use of effects sounds, balloons, etc.
The shots look great - well-lit and well-composed. Great variety in shots between long shots, medium shots, etc.
My only minor nitpick in this regard is that I would avoid as many high angle shots as you can. It's not a major concern here at all, as there are only a few and the angles are not really that high.
But I've seen people do "bird's eye view" shots in other stories which really just make the toys look like, well, toys. The more low angle shots looking straight at your figures the better. It's very difficult in this case, since you're on the ground and cannot get yourself and camera lower than the figures. You work around this obstacle very well!
In fact, despite the fact that you're using real, full-size plants and landscaping, you do a great job of disguising that fact and making it look like real jungle for Indy and his pursuers.
I think the use of the more-articulated Wolverine figure as your base was another brilliant move, giving you a greater variety of possible action poses for Indy, making him far more dynamic.
Nice subtle customs with the Nazi figures, too.
I did have a few questions about the story.
I wasn't sure in the beginning if Indy was trying to get TO the location of the skull. The reveal that he already had the skull was surprising - is that what you were going for?
Maybe you should have mentioned Indy already had the skull and was escaping?
Along the same lines, I was curious as to why the Nazis kept saying "get him, find HIM", and didn't mention the skull at all. Presumably, that was their goal?
All in all, I think one or two more bits of information about the skull - either in dialogue or in captions - would have helped. Why are the Nazis after this particular artifact? Presumably it has some kind of mystical properties? They're not just after gold. Or are they?
Oh, and why did the Nazi captain order his two men to be killed? I didn't quite buy that moment.
Of course, it's perfectly fine that you don't hand us all the answers in the first chapter! Some mystery is all well and good. But I was just slightly confused about these issues.
While we only get a taste of it, I like the "rough around the edges" indy that you're going for here, which seems very appropriate given the early time period. I think it definitely fits that Indy would still be a bit cruder and a bit rougher in his younger years.
The ending DEFINITELY came as a surprise! Great shock and great cliffhanger. I'm looking forward to seeing the integration of the pulpy, sci-fi, "dieselpunk" elements into the story.
All in all, off to a wonderful start, I am very eager to see the continuation of your story! Well done!