you're welcome pjb!
i tried a pontilistic style here (if the impress plug-in does some kinda "the same" thing, sorry; i don't have it, so donnow...)
i applied artistic->"paint dubs" w/ medium sized brush and high contrast, then artistic->"rough pastels" w/ high detail and medium sized strokes [maybe this phase could've been left out...]; duplicated the layer, and set the upper one to "hard light", and applied distort->"glass" to it (frosted, smooth 2, distort 5)
the rescaling smoothed it a lot... better try it at home ;-)