Honestly, my chapters just get longer the longer the comic becomes. =D How I pace my story and how many pages I need to convey mood is something I needed to learn first. The story also is getting more complex through it's progression, so finding a satisfying point in the story to end a chapter, is getting more difficult. I try to let it end on a resolution or a question, not in the middle of an action scene or something like that. ^^
To break it down:
First chapter: 29 Pages
Second Chapter: 31 Pages
Third Chapter: 46 Pages
And the fourth chapter will probably be the longest one yet, when I look at how many scenes I have planned for it. Originally I wanted them to be all around 30 pages long, but nah. Not gonna work I'll just adjust the length to what is needed. Some storybeats need more time than others!