There's a cruel little law in painting: the same layering that builds richness will, one layer too many, destroy it. Add marks and the picture deepens; add a few more and it suddenly goes flat, muddy and dead. Learning to feel that turning point — and put the pencil down — is what separates a fresh landscape from a laboured one.
Why More Becomes Less
Three things tip a good picture into mud. Too many marks: when every patch is worked to the same busy intensity, the eye has nowhere to rest, and the whole thing reads as noise. Too many colours: every colour you add pulls the mix toward grey-brown, because mixing lots of pigments together always heads for sludge — that's just how colour works. And over-working: scrubbing the same spot over and over kills the crisp, confident look of a single decisive mark and replaces it with a tired smear. The picture stops feeling made and starts feeling worried at.
The Sweet Spot, and How to Find It
In the toy, there's a marked sweet spot — the layer count where the scene looks richest. That's not a fixed number; in real work it's a feeling. The trick is to stop just before you think it's finished, then walk away and come back with fresh eyes. Nine times out of ten the version you thought was "not quite there" was actually the best one, and the extra half-hour you'd have spent only made it worse.
The Quiet One: Precious-itis
The other trap is the opposite — being so afraid of ruining it that you over-tidy every mark into the same timid neatness. A landscape wants some variety of energy: bold here, delicate there, a few accidents left in. A picture where every mark is equally careful is just as dead as one that's overworked. Confidence and restraint are the same skill, used at different moments.