I'm posting a novel and not a comic, so take this with a grain of salt; things may differ between the two. But I took a peek at my stats to get an idea. Using my most viewed chapter, about 3% of those views translated to a like, and it's also got zero comments. Other chapters with fewer views have a better stat-spread, but the highest view-to-like ratio I've got is around 10%.
All that to say... likes are uncommon and comments are rare. It's normal.
If you want to encourage interaction, you could always ask questions / leave open comments in the episode descriptions. But I'm not sure there's much you could do to encourage likes.
Also, kind of related: your own views of episodes count toward your total. So if you pop in to check something and make sure it looks the way you want, you've just added to the views. If you're trying to track your early stats, just keep that in mind.