Halloween Pumpkin Icon

For the beginning we need to represent a new file (File>New) of 512x512 px and 72 dpi. Next try to give the new file with the next demonstrated color, using the Paint Bucket Tool (G).
Using the Ellipse Tool (U), try to make a circle as the next picture indicates it.

Find after that Blending Options>Outer Glow by making a mouse click on this layer on the layers' panel. Set the next shown parameters:

Set the appropriate gradient now:

You may see below the gradient's composing colors:

You must get the same result demonstrated next image:

After that we'll represent another circle, placing it the same way demonstrated below:
Fill 0% for this layer on the layers' panel: Set the Stroke for the made circle, following the parameters from below:

We should get a kind of gradient outline, like on the next image:

Now we'll select the Pen Tool (P) and represent a triangle, then the Convert Point Tool will be used for adjusting the elements' tops. Press ALT button while getting a circle with the Ellipse Tool (U).

Make a copy of the made eye (Ctrl+J) and turn it over with the Free Transform option (Ctrl+T). Then make a circle and select the Rectangle Tool (U) to cut out small rectangles, getting this way the teeth.

The nose can be made with the Pen Tool (P). We've got a kind of mug:

All the elements need the parameters demonstrated next table:

This is the result we must get on this stage:

Try to make now a new circle, adjusting it with the Direct Selection Tool (A). Fill 0% for the layer and set the appropriate gradient shown next table:

We've got a highlight:

Make copies of all the layers, except the one belonging to the background, press Ctrl button to mark out the necessary layers and put them together by pressing Ctrl+E. Turn around the new layer that we've got and erase it the same way shown next picture, applying the Eraser Tool (E).

Finished!

Create a Radar Signal Image

Create a new file (File>New), having 1280x1024 px and 72 dpi. Next applying the Rectangle Tool (U), try to make the background of the picture we want to have in the end.
Set the next shown parameters by making a mouse click on the layer we work with on the layers’ palette. Blending Options>Gradient Overlay

Gradient’s parameters:

Now we shall set for the background’s layer the next parameter: Filter>Noise>Add Noise

… and also Filter>Blur>Motion blur

Next step we’ll try to represent a kind of radar panel. For the beginning we’ll use the Ellipse Tool (U) to make the primary layer of the mentioned element.

The layer’s parameters: Blending Options>Inner Shadow

Blending Options>Outer Glow

Blending Options>Gradient Overlay

Gradient’s parameters:

Choosing the same tool, it’s possible to represent the element’s screen:

The layer’s parameters: Fill 0% Blending Options>Stroke

Make five copies of the layer we’ve recently represented and select the Free Transform with Maintain aspect ratio option to press on the copies uniformly by the central direction.

Now, let’s group together all the layers, composing the rounded element (press Ctrl button to mark out the necessary layers and hold on the left mouse’s button while taking the marked layers on Create a new group selection). Marking the group we’ve got, press CTRL+E and apply for the layer the next demonstrated parameter: Fill 46%

Make a copy of the rasterized layer; get back the parameter Fill 100%. Then select the Blur Tool (R) to blur out the marking, placing this layer above the previous one.

Using the Line Tool (U), try to make a vertical line, colored with #18A139

Make five copies of the layer containing the vertical line and select after that the Free Transform option to turn over the copies on equal distances relatively to the central part of the picture.

Try to make now a corpse’s frame around the radar’s screen. In this case we’ll use the Ellipse Tool (U) to represent a circle. Try to make firstly the outside borders and then press Alt button to cut out the middle part of the circle, applying the same tool.

The layer’s parameters: The white color: Blending Options>Bevel and Emboss

Try to make the next corpse’s layer of the radar panel, applying the same method, described above and the same tool too.

The layer’s parameters: Blending Options>Gradient Overlay

Gradient’s parameters:

Try to make now several highlights on the radar’s screen. In this case we’ll select a standard brush, Brush Tool (B), to draw several white dots.

Applying the Smudge Tool (R), try to smudge them on.

Find in Internet a picture representing the white map of the world.

Set the next parameters for the layer containing the world’s map. Blending Options>Outer Glow

The radar panel is finished!