A native of Cornwall, in 2010 Macey was involved in a yearlong project to paint National Trust landscapes in ten regions throughout the British Isles. Integral to the commission was an accompanying film, created by Cornwall's Three S Films, based on a series of DVDs featuring the artist on-location at various sites around the county (for the Cornish part of the project). These include not only the iconic St Michael's Mount, but also Godrevy, Cape Cornwall, Botallack etc, and the artist explains his techniques and gives advice to others wishing to follow in his paintmarks.

Limited edition prints and cards are made from his images, which are sold to support the National Trust in conserving Britain's landscapes.

In 2009 he completed a similar major project for the RNLI, painting 180 locations around the English coast, raising much needed funds for them.

In 2017 he painted his way around the coast of Arctic Svalbard, documenting the wildlife and climate changes affecting this fragile environment.

 In 2020 Macey decided to re-visit the 180 locations featured on his 2010 expedition, to raise awareness and funds for coastal conservation projects.

Macey is a regular exhibitor at Gallery Tresco. He has led workshops in acrylics at Truro Arts Company (2018).