Vignweek is an annual competition hosted by RebelLUG that challenges builders to assemble a vignette around a daily theme. Just 24 hours to turn around a build with no rest days! It’s a marathon and a sprint for some incredibly talented LEGO creators. We rounded up our favorites from day 1’s “Archaeology” theme here. For day 2, the theme is “Monochrome,” challenging builders to make a vignette using just one LEGO color. Here’s just a sampling of the amazing creativity born from this challenging constraint.

Jakub Kozina gets his greebling on with a tribute to the knobby little bits that space and machine builders so adore. Excellent glue and modeling scissors too!

Sydrarian offers a microscale scene of a tower in the clouds. There are so many impressive curves in this lovely composition. The builder also gets a bonus color through use of negative space to give the tower windows that pop.

NikiFilik‘s creation may be red, but I’m feeling green with envy at the skillful technique on display.

More monochrome creations await