What sort of result do you want from uploading it? Do you just want to be able to send people to a web address to look at it? Or do you want it social media feedback from random strangers? Do you have a scanner or a digital camera?

I want to upload on the webpage for myself, As I do not have an intention to sell or anything. My art is all on paper and I move a lot so I can’t get all my supplies everywhere. I keep all my art in storage or maybe at my mother’s place.
As google drive is messy for me, It gets hard for me to organize and keep a track of it.

I do not have a scanner but I do have IphoneX from which I can take pictures.

I am looking for Instagram kinda UI but do not want strangers to look at it and make comments about it.

Check out Flickr.

Here are the best cloud storage for 2021. https://www.techradar.com/best/best-cloud-storage-for-photos

I don’t know if this is anything you might like, but check out https://www.deviantart.com/

DeviantArt is an online community showcasing various forms of user-made artwork. Explore over 350 million pieces of art while connecting to fellow artists and art enthusiasts.

It seems to me that it would be unlikely that you would find critics there, unless you solicit a critique.

Thanks everyone, I came across some really new websites and I am doing my research on those pages. Thanks once again.