Muito legal o detalhamento. Apenas umas dicas para melhorar:
* Uma vez que a área de um objeto tenha sido desenhada (way/531584215), o ponto que a representava pode ser excluído (node/3905354338);
* Quanto as igrejas, desenhe apenas o prédio em si e não todo o terreno para marcar como igreja.

Como não houve resposta aos questionamentos, nem encontrei fonte nenhuma que diga que tenha uma parque ali chamado de "Parque Verona", vou marcá-la como simples área de mato.

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building=ruins não seria mais adequada?

Muito bom. Apenas dê descrição a sua edição. Ao invés de "a" você poderia ter dito algo como "editado monumento", por exemplo.

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Quanto a descrição da changeset, lembre-se de atualizá-la com frequência.

Quanto a gruta, poderia talvez marcá-la como "historic=wayside_shrine" que no editor web está como "Capelinha de beira de estrada"

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Poderia melhorar o traçado do lago da praça. No mais tá muito show!!!

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