agreeing with all other comments, cleaner lines and such. i picked up a pretty good trick for helping with that too. what you do is you start off with a large file that has high resolution (i usually work on a file that is anywhere from 8x11" or higher at around 400/600 dpi) and then shirk it down (i take mine down to about 5" high and 400 dpi). that will smooth out your lines just by virtue of making those tiny mistakes smaller and makes your lines more crisp over all. :> in photoshop you should be able to do that by going up to the image tab and going under resize and then resize canvas. if you mess around with that a bit you should be able to wrangle it to what you want. ^^ thanks for asking and i hope that helps!
Hmm… Probably start over, The layout is pretty bad. See, diagonal panels should usually be reserved for action shots. A common problem for amateurs is that they just draw a solid black line to separate panels. add a little space between panels.
agreeing with the two comments above, try making the lines a little more crisp. I have trouble with that too, and it can be helpful to just go back with the eraser after rather than fight with it the whole way through for the ling across the center and the text bubbles, you could try using the shape tools, sometimes it can make it look more finished (but sometimes it can also look too different, so it's a trial and error process) as well as save you some time! colour would also be a nice addition, colour can add a lot to pieces I hope that helps! Thanks for asking me my opinion!
i'm not sure if that's what they are actually called or not I believe i'm using elements 10 underneath the bucket tool in the toolbar, there's a rectangle tool if you press and hold on that, it should bring up more options, such as a rounded rectangle, a line, circle, etc select the one you want to use, then just click and drag on the canvas to create your shape! after you have the shape you want, you can always adjust the size, so you don't have to worry about getting it perfect I hope that was an alright explanation! if you're still confused i can give it another go