In a way that shows great care and attention to detail. (Cambridge Dictionary)
In a way that shows great attention to detail; very thoroughly. (Oxford Dictionaries)
Marked by extreme or excessive care in the consideration or treatment of details. (Merriam – Webster)
If you describe someone as meticulous, you mean that they do things very carefully and with great attention to detail. (Collins Dictionary)
Meticulously cut paper illustrations by Maudie White.