Great, unique and refreshing experience! I enjoyed seeing your process. One critique I have is that it's some what difficult to follow along when reading.

The reason being is that your images sometimes appear on the left and sometimes on the right. Images hold a ton of visual weight and typically are one of the first things to catch a person's attention. One way to solve for this is to either align images on the left (people read from left to right) or you can add more padding between your content sections. Cheers!

I always second this. Baymard connects this research on a yearly basis and can definitely answer the questions that OP is asking.

Yes.

The closest thing I've seen to your problem is a tool like this: http://handrailux.com/

A few years ago, they announced how they were working on two tools that somewhat coexisted: Stage and Gallery.

If I had an inkling, Gallery may be the focus now as there has been huge competition in the field of interactive prototyping (which Stage seemed to solve for). Anyhow, I personally know they've been testing Gallery for over a few years because in Fall 2016, I did a user interview session with Google. In the session, they introduced the Gallery product and it seemed very far along. Who knows though!

These wireframes look great! When do you think they'll hand it off for high fidelity mockups?

Great analysis Priyanka.

However, I have one critique related to your validation testing. Based on your statements, it appears that everything went smoothly and they were able to accomplish the tasks with your new designs...

But did you not find anything wrong with your new design? I find that extremely hard to believe. It would have been nice to see you take it one step further by explaining what worked and didn't work in your new design changes and offer recommendations based on those findings.

Otherwise, great job!

This isn't necessarily feedback on your landing page, but why don't you offer an "educational license" for universities? Universities are known for purchasing products like this for their students. I'm sure you may have thought of this already though.

It appears to be hand-coded. She's using Parallax.js and jQuery. Also, the markup is well documented and is definitely scannable.