Which sentences would most benefit from revision to eliminate unneeded content that may confuse the reader?

The quality of the detail is more important than the quantity.

Tweezers and a magnifying glass are helpful tools in model building, as well as a dish of water for soaking the decals until they are wet enough.

Railroading modelers build locomotives using tools that are especially made for model building.

One of the most difficult tasks of model making is applying the tiny decals.