Practice castle

[Ascension]

Here's how to do the trees, pretty simple:

1. Using white as the color and a 9-pixel hard round pencil, increase the spacing to 100%, increase the scatter, make a click. What we're looking for here is something like a child's drawing of a cloud. If it doesn't either increase the scatter, the count, or add a few more clicks.

2. Fill a layer with black and move it below the white layer. Click on the white layer and merge down. Filter - brush strokes - spatter = use any setting that you like. This basically roughs up the edges. If it's too rough then hit Filter - noise - median = 2.

3. Select - color range = black with a fuzziness of 200. Hit the delete key and deselect. Add a pattern overlay, color overlay of green, inner glow of black or brown, inner shadow (set the light source to be opposite of the global light source), drop shadow (make the distance large to enhance a "floating" feel), and a textured bevel (I used the defaults "spikey bush" for pattern and "clouds" for texture).

4. New layer, do up clouds, and a bunch of difference clouds. Gradient map a yellow to green gradient, set blend to soft light, and reduce opacity until happy, then mask to fit the tree shape.

5. New layer fill with 400% noise, blur it by 2, set to soft light, lower opacity, and mask it off to fit the tree shape. You can also gradient map colors to this to add some random color spots, I use browns and ochres.