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Hello!

I will cite a few examples for you:

15-20 years ago, almost all the games were in 2D and it was fun.

This one should read: "Fifteen to twenty years ago, almost all games were 2D and it was fun." (Saying "all the games" would imply that you are referring to a specific list of games.)

In this blog post, I have reviewed Pixel Artist application.

This sentence should read: "In this blog post, I have reviewed the Pixel Artist application."

So I'm using this app to support open source ecosystem.

This one should read: "So I'm using this app to support the open source ecosystem."

After finishing your drawing, you can save it to your gallery with export feature.

This would be a better sentence: "After finishing your drawing, you can save it to your gallery with the export feature."

I hope you will find this comment useful.

Ahh, got it! I appreciate you helping me. Have a great day! :)