DOI 26

Please see this critique as a positive thing for you to develop and enhance your skills. I love your art but still I want to see it very professional. I see that your category is anime/manga but I would like to ask you if this is really a manga or is it a comic strip? If it is a manga, see my critiques below:
(1) Observe your background perspectives at panel no. 1. See other manga as your reference. Every manga must obey the so-called "one-point perspective".
(2) At panel no. 1, you don't have to occupy the half size of your canvass if there is no impact in such picture. You are only allowed to occupy it if there is something big happened in the story.
(3) Darken some of the things in the panel 1. Obey the rule of "depth" or "the proper shadowing".
(4) At panel no. 2, if your subject is walking, you must show that his feet is walking. Backgrounds are secondary priority. As I can see in your panel, I don't know if the subject is simply standing or walking.
(5) Panel no. 2, again, obey the rule of "one point perspective" for the background and also, add depth.
(6) For the last panel / panel no. 3 (I am referring at the lower left side of the canvass), I suggest you to observe how the wrinkles of the sweater must be drawn by taking a picture of a real guy wearing the same clothes. Then you can draw the proper wrinkles of your subject.
(7) You should also obey the proper posture, body size perspective of your subject, and the hand drawings. I suggest you to practice more.

If this is a comic strip, see my critiques below:
(1) Emphasize facial expressions.
(2) Lessen background impact.
(3) Add lineart depth so as the shadows.

All in all, I love your drawing. Keep on practicing on doing this comic strip / manga. Even I, myself, can't make it digitally you know.