Hi, @riyamlenkeron! Welcome to Tapastic! It's a friendly place, so I'm sure you'll fit right in with us. Hope you like talking about comics, because that's 99% of what we do here! XD
I really like your art style - it's got real character in the linework, and the colours are really nice. That last page most of all - which I assume is your cover/title page?
But like @yvettegustafsson said, the speech bubbles look a bit odd. The shape of the bubbles themselves look fine - and I applaud anyone who hand-draws bubbles, as my own shaky hands kind of prevent me from doing so - but the text doesn't really fit into them. In the first panel, for example, the second speech bubble is kind of tilted to the left, but the text itself is aligned straight, so the letters are right up against the edge of the bubble. If you tilt the text to the left as well, it will fit much better into the bubble!
The rule of thumb I learned in school is that the space between the text and the edge of the bubble should be at least the width/height of one letter, otherwise it ends up looking a bit smooshed. Centering the text is a good idea too - aligning the text left makes it look stiffer and more artificial than it needs to.