@diegoppyoja, I really like the color pencil style of your comic. Very original! I also am enjoying the humor in your comic, it's subtle (how only one person seems to think a rock fighter is ridiculous), very nice so far!
My only pieces of criticism has to do with your word bubbles. I'd recommend leaving a little more room for them in your panels. Right not a lot of your artwork is being covered up by them, and that's a lot of effort on your part that isn't being seen (such as at the bottom of page 4). Also, I've never been a fan of word bubble tails overlapping characters faces, I feel like it's distracting. In the future I'd just try to avoid that.
Overall though, for your first group of pages, you're off to a very good start!!
Here's my comic for the next person: