I'm planning a 3 tiered topsy turvy cake, going for a watercolors and sketches kind of look (think Ralph Steadman but more prettyand a little less weird). Anyway, My question is, if i sketch in edible marker and then apply watercolor (alcohol color, of course), will that remove or smear the pen lines?? I want to use the color in the background and tio fill in shapes in the foreground. Thanks!~

BONUS question! I'm using marshmallow fondant. I have an enclosed porch that's about 32-35 degrees in this weather, will keep a large cake away from my rotten little dog. Will that temp. damage the fondant at all? It's very well ventilated, not a moist area at all.

I find it easier to do the rough paint and then go back and outline after the paint is dry.

The temp. shouldn't bother it, you may get condensation though when it's brought back to room temp and who know what that will do to the painted areas (maybe nothing but who knows?)