the style of the writing. its perfect for the first part, but doesnt look right in speech bubbles. if you look at a lot of other comics, typically a font that looks a little closer to handwriting is used, similar to comic sans. if you look around for 'comicbook fonts' there are lots online that you can download and use for free.
this only really matters when you start writing speech which you havent yet, so you could instead change your bubbles to maybe a soft-edged bubble of a different colour like: http://myprintscreen.com/s/hg79/e611b3cb07 which would look effective with your font
id also recommend trying to fashion your text into the shape of your bubble. for example:
http://myprintscreen.com/s/hg76/735fdbab05
the text makes a bubble shape.
also, your title should be 'two lives' not 'two lifes' - if youre unsure about how a words spelt, maybe try putting your word for it into google translate, looking for the english translation youre familiar with