To find matching yarn proved to be astonishingly difficult, and after trying four local yarn stores, I found a thinner yarn that looked more or less okay. There are myriads of greyish-tan wool yarns out there, all too yellow, or too pink, or too dark, or... I am cursed with a picky eye for color, and the yarns that the store clerks thought looked the same were just not. The thinner yarn is not really amenable to being couched down, but with a little experimentation, I realised that I could do an irregular blanket stitch over the surface of the mushroom cap, and that would give a rather more stylised, but still effective, morel. (I'm thinking about making some for my Etsy shop)
~ :♥: ~Several months ago, I took this online test for color differentiation, and found the results to be rather interesting.
~ :♥: ~and here is a picture of the springtime that is on the way; a patch of snowdrops in my front yard