Overall, I think the maps are pretty good. I do think that it would be good for you to try and work in PS or Gimp. You could always scan the work in. You could also finish the hand drawn maps and then scan them.
Now for my suggestions on the map:
1. The mountains. The symbols are pretty basic, and are a little too lightly drawn in so they are difficult to see. I would try to spice them up a little, and darken them up a bit... They may be clearer to see in person, and if that is the case, disregard the darkening comment.
2. I don't know how far along these are, but it would be good to show woodlands and cities as well as other features of the lands. That may be in the works, so disregard if they are.
I like the shapes of the continents. You have gotten them on a sheet of paper, but they are not "square" looking. Many people think that they have to use as much of the paper as they can for their landmass, and they end up looking box-like. Yours do a good job of avoiding that.
Looking to see further updates!