Might I ask what tutorial you are following?
I am currently trying to produce a map using one of the tutorials and have hit a problem with blending the colours. I can't seem to get the Blur effect to work? What am i doing wrong. I went back and tried the tut again and still no blur. I am new to using Photoshop so am a bit clueless.
Here's a pic of where i am at, you can see the sketchy lines of colour that i cant get to blur/blend. (I tried some other things out using brushes etc so ignore the vaguely blended bits in middle.)
Sorry, should have mentioned that. I merged the 5 layers and then went to 'Filter / Blur / Blur'. I tried various things here, but the tut just says "Blur the merged layer" and doesn't elaborate for noobs like me on how you actually do it.