Ideas to improve conversion rate of this landing page?

I have a few suggestions that I hope will help.
I agree with the others with regards to the headers. You would be better off without them. That area is your most valuable real estate on that page. At least, get rid of the first one.

If you leave the second banner, change your copy. Your copy should be changed anyway.) You start off with "If you've come by my blog before...." Well, no disrespect, but who are you? Why would you think I've come by your blog? What do I, as a first time visitor, get from those words? Nothing... Click and I'm gone..I'm not interested in you or your blog. I came here because I thought it had to do with learning Spanish. (I'm saying this as a first time visitor, not trying to be mean or cut your page down)

Hope you see what I mean. You need to blast the good benefits up there that I am going to get by buying the product or reading your page. You have a big whopping 10-15 seconds to keep me from clicking off your page.

I understand that you are trying to use the "tell a story" type page. This works great for things like relationships or being fat etc. But I don't think it would work well for this. People already know they want to learn Spanish. They don't need any help in making their minds up. They are more interested in the best, easiest, and cheapest ways they can accomplish it. Again, you can reinforce this by first telling them the benefits they will receive. Then follow up with using the features to show them how they will get their benefits.

Think about your target audience. Who is most likely interested in learning Spanish and why?

Employment opportunities - Probably number one reason, followed by travel.
Both State and Federal government have tons of jobs waiting for people who can speak Spanish. Schools and educational institutions need them too. I bet there are thousands of out of work people who might not realize they have a skill that is in BIG DEMAND (hint..hint)

Travel - Well, I might be wrong but I read somewhere that there are actually more people who speak Spanish than English. It would come in handy for those who travel on business or just for pleasure.

Your blog page looks nice and you did a great job on it. I can see you put a lot of work into it. And that is where that page belongs. On your blog or even Squidoo. But not on a landing page or sales page. At least not for this type product, IMHO.

I hope this helps,

Zeek