Castle Street, Saffron Walden

No special effect was applied here. Perhaps the houses do have no substance; I don't know because I didn't try squeezing them.

All I did was recolour one which is painted a bilious purple colour to a less offensive amber, and the adjacent house which is acid yellow to a muted blue.

Thanks for posting your wonderful picture to

www.ipernity.com/group/buildings

I've just checked on streetview and you're right about the bilious purple.
I would be tempted to scrawl graffiti all over it (on photoshop, of course).

You must have some sort of effect on there, because it doesn't look normal.
It doesn't seem to have the right amount of sharpness.

I've sharpened it digitally. That's standard procedure after developing any RAW image, but I might have forgotten to do that in this case. The amount of detail is normal but it was taken in hazy sun, and hence would anyway not look as sharp as if it had been taken in bright sun.