Hello Emran, sorry for late reply. Thanks for sharing your design with us.
After examine your design few time, I feel it requires some UI improvement.
Let me explain my concerns here -
1. Logo - The Logo can have bit more white space around it. Currently it looks bit squeezed.
2. Banner- Not sure about the banner. Seems it is an ad. However page related banner would be more appropriate to start a page. Also you are talking about social distancing, but in the banner people are handshaking. Need to re-think about the banner.
3. No Title - I still don't know what page it is. As you mentioned it is a landing page, but it should have title such as- Tax Rebate Made Easy or may be Delta Life Insurance.
Rest Assuered! seems out of place.
4. Button Colour - Agree with Biju bhai on using different colours for each buttons. Any particular reason?
5. Videos - Videos should be placed under appropriate sections. Currently it seems those are just dumped at the end of the page.
6. Contact Us - I believe, this is very important section on this page. It demands better treatment in UI.
7. Font - Overall I didn't like the font. Seems bit stretched (horizontally). Colour may be okay, but it is not working when tied with black font. You can keep the same colour across the page.
8. Padding - Overall you can increase the padding from both left and right side. This will give a nice and compact view. Currently it's too loose.
Sorry for all the constructive feedbacks. But I believe fixing those will improve your UI immediately. Let us know if any question.
