>>26506011Lines changing in width like in this one
>>26503315 are achieved by using a graphic tablet + pen pressure. If you don't have a graphic tablet, you can fake this effect using paths in Photoshop with brush settings similar to those in pic re- oh damn my PS is in German. Well, by checking the 'shape properties' (direct translation, something like this) in the 'brush properties' section of the brush menu.
