I think this is a pretty good base!
I would have a full hero section - this could be personal preference, but I also have had success with full screen heros.
I would run an a/b test having the form in a lightbox. I find I usually get a 20% increase in conversions by moving the form to the lightbox. with having it in a lightbox as well you can see the drop off rate by the number of users clicking on the lighbox vs number of users actually filling out the form. It kind of gives you an idea if there is something with the form you need to change up. Lately, if you put the form in a lightbox I would also have a section at the bottom of the page as well with a CTA.
Is the testimonial image a stock image? It just doesn’t seem overly trustworthy to me.
I really like the document scanning section but I would like it higher on the page so I know exactly how this works without having to go through the whole page.
I would add some information to the Footer (company name, address, logo, etc) just to make it look more ‘legit’.
You are missing the favicon - this just helps build trust before the page even loads.
If you are good with testing out script, I would add some false bottoms/angled sections to the background. I think it just looks more appealing - again that could just be person preference.