I really wouldn't hold your breath for adrev honey. Depending on the period (because ad rates go up around consumerist holidays like christmas) 100-300 ad impressions can make 1 cent on the dollar. If you're like me and live somewhere where the currency is stronger than the dollar, this wouldn't even be a penny.
Like others have said before, ink donations are likely going to be the only meaningful income to your comic on tapas unless you start getting hundreds of thousands of views regularly.
It's also a good idea to offer things like merch and ko-fi/patreon for people who would like to support you more directly, that's often a lot better than adsense for most people even with only one patron.
For example I've had adrev activated for over a year now, I think I broke 10 cents in adrev in total last month, but I've made money through my comic via patreon, tabling at conventions selling my comic's merch, and soon thanks to my crowdfunding campaign I'll be able to sell physical copies of book 1 at conventions too :3 if you want money from your comic it kind of requires finding multiple alternative sources.