Portofolio - need feedback and review

Portofolio - need feedback and review
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#1

Hey everyone,
I proudly present you my portfolio
Feedback greatly appreciated

to ensure you get the best experience use this link : https://codepen.io/manh21/full/vjxyoo/
source code of my page: https://codepen.io/manh21/pen/vjxyoo

What do you think ? Any advice ?