Thanks guys for your comments. Forgot to mention: paper is ASO_RawMaterial_Special from Scrapgirls, font is Crimefighter BB from Blambot (cartoon) and 1942 report from dafont (layout), miscellaneous embelishments used from various sources.
This layout was done following a tutorial link for making comic art posted by Scrapgirl Sandrai (many thanks - here's the link again in case people didn't get it first time www.macmerc.com/articles/Graphics_Tips/309).