I was gonna suggest photoshop, but I don't know that it's available on tablets. As far as grammar goes, I'm gonna stick it in a spoiler so I don't look like a complete ass. In panel 1, I'll should be I'd (This is the one I'm most unsure of because it might be a case of 'That's how you say it where I live' In which case, you can ignore it.) In panel 2 he says "I've outgrown them" in reference to combat it should be "I've outgrown it." In panel 3 he says he doesn't want to be 'in her bad side' (Little weird) Should be 'On her bad side In panel 5 he says 'I'm kinda lazy to go' it should probably say 'I'm kinda too lazy to go' In panel 6 kniq says 'thanks for giving me this injuries' when it should say 'thanks for giving me these injuries.'