In reference to your first example Bouncing off what others have said I do like your style, but I think to push the work up a notch try varying how characters are represented in each panel.
So you have a headshot in one? Try doing a behind the shoulder shot in another, of course every panel don't need to be a huge difference but just those little changes between each can go along way from not only improving as a artist but also improving the viewer's experience when they actually scroll through and read your comic.
Regarding the second image, that's a solid improvement, and much more enjoyable to look at (even though both aren't lackluster in any means).
Great work