I am still a beginner at landing page design, so take my opinion with a grain of salt.
I think the main header is way too busy. It looks like you have 3 headlines to the page and a one really long sub-headline.
I am not a big fan of the color combo. Especially the blocks on the main page. I like the video, the video tells me more about the service than the words, I would just remove the yellow and tan blocks at the top and keep the “You Cant Miss it in Rome" with the background video.
That first CTA is a weirdly worded. I know Discover is a powerful word, but maybe you can re-word it? “Discover Historic Rome”. Since this CTA just takes you down the page, maybe changing it to something like “Learn More” would be more appropriate to that action that takes place.
The second section throws me off color wise. Maybe scrap the green and make it the same red as the logo?
Also, I don’t like the sharp edges of the boxes, I feel like having rounded corners is a more modern design.
The reviews section: I think the photo file is low res. Maybe try increasing the quality or just write out the review and insert the 5 stars.
The form: Again, I’m not a big fan of the sharp edges. Also, I feel like it doesn’t ask enough questions, do you want to know the persons name?
As a consumer, I don’t know what will happen if I put my details in the form? Are you going to give me more info? Are you going to reach out to me at a later date? Am I booking a tour? What am I doing by filling out this form and that can I expect after I give you my information?