Pangala, my first map

[xequar]

That stair-stepping you're seeing on your mountains is a result of your bump map not having enough contrast. The farther apart, brightness-wise, the darkest and lightest parts are, the more values will be present, and the less you'll be able to see the transition from one level to the next.

Also, if you throw a slight "Gaussian Blur" on the white layers before you Emboss them to make the mountains, you'll help knock down some of those issues. See my Nesspressen thread. I had the same issues, and a generous benefactor passed that tip onto me.