I really like the landscape colors in this and the way you shaded the cliffs and walls. It's like not so much as to draw a lot of attention away from Irving, but elegantly done in the same coloring style and saturation level as Irving, so it blends into the background well. The use of frame placement worked really well for adding excitement/interest to the scene, instead of the statically placed grid boxes that are common in a lot of webcomics/graphic novels with the same alignment on every page.'
Again, the fur shading worked really well here, sort of gradual in some places but with more closely defined lines in other places. The expression conveys a great deal of the shock and surprise needed for this scene, and it works really consistently in different frames, which is great too! As for the poses and anatomy in general, I think that works pretty well too. Though, at the same time, I'm not sure about the very last frame (is it something with foreground/background or the layers?), as I am not certain about what's happening there.
I think the characterization you've built for Irving with his expressions is off to a really promising start, and I think he has great potential to develop as a redeemed character in the course of the series! The next page should be really great, as he comes to the realization about his spots actually being gone or continues in denial, or whatever you have planned. I'm not sure how he finds out that he needs to do good deeds to earn the spots back- I think that comes later with the St. Bernard dog character, as he's currently just finding out that the spots aren't there any more.
I know you must get a lot of notes, sorry about that! I wanted to give you the chance to suggest changing anything about my art before uploading it. Also, I've made good progress on the digital art for the song.