Checkout my website is good or anything that should be changable

Question

https://code.sololearn.com/WlE1n4rDvGUK/?ref=app

Answer 1

There is always room for improvement :)
As for visuals, a good design should have a harmonizing color scheme.
Your image illustrations are distorted, aspect ratio seems off.
As for code, you seem to have a lot of copy paste in there and some of them looks suspiciously unnecessary (Some representative placeholder content for the first slide.)...
You could use section and article tags to structure your content better (with semantic meaning), and you could apply better formatting to your html code to make it a little more readable.