I need someone who can criticize my work, please

This is my second time using this page, and I would like you to help me with my drawings, please give tips so that a beginner can understand them, in drawing of 10- 20- 30 minutes I finished before time, I did not know how to handle my time t_t

00:30
https://photos.app.goo.gl/CpwJHXDSnJ25nJ8z6

01:00
https://photos.google.com/photo/AF1QipPbasW1KUb48OcTDcDUJlt7JjZX9gapSYJ2d4_m

05:00
https://photos.app.goo.gl/ysiV8tQbx8Vgi36R6

10:00
1- https://photos.app.goo.gl/VcyAJEXrTtMZD8Qn8
2- https://photos.google.com/photo/AF1QipMSL0HNAlbPNRH1HzZkZC_fBZyMfbCTQMAUe4HU

20:00
https://photos.app.goo.gl/rLGBXzFyfiua3zSq8

30:00
https://photos.app.goo.gl/umegmid7CpdjkVCS7

Hi there,

Your drawings are very good considering you are a beginner, so don't worry too much, eventually you will know how to handle better your time, just keep practising.
You may try to clean a bit your lines. For example, the 5 minutes drawing it's a bit hard to understand. Instead of define the figure by adding more pressure with your pencil, you can use an H (4h, 2h or h) for the sketch and a soft pencil (hb, b, 2b, etc) to finnish your work. Or simply try to avoid doing a lot of lines. In this way you will be able to see better what is wrong.

I like how the last draw looks (30 min), but I can't see many photos and the 30 seconds one is wrong.

Do you do gesture drawings? Check the site's articles about it if you didn't do so, they're very helpful.

So needless to say, keep working. :)

thanks a lot, for the advice ill keep working in order to be a better artist :D