The bright yellow of a Chamaecyparis obtusa ‘Crippsii’ shines in a stand of trees that includes the tall, cylinder-shaped Juniperus scopulorum ‘Skyrocket’ and the conical Alberta spruce (Picea glauca ‘Conica’).
Keep the garden vertical. That's why it's good to look for shrubs and trees that max out interest as they grow up, not out. Try dwarf varieties for a small backyard, as well as more columnar evergreens (bonus—they boost wintertime interest, too).
Juniperus communis 'Stricta' Blue spruce 'Maigold' The rocky juniper 'Blue Arrow' Blue spruce 'Glauca Compacta' Deren white 'Aurea' Yew ‘Washingtonii’ The European larch 'Pendula' The average juniper 'Gold Star' Rough fir 'Compacta' Oregano 'Thumbles'.