Geometry. Three green circles on lime green background. Minimalism. Creative abstract christmas tree concept. Educational wooden toys for children. circle; figure; green; geometry; three; round; background; geometric; minimalism; creative; concept; bright; color; bold; toy; wooden; shape; education; child; learn; different; sizes; natural; difference; bold colours; concept; abstract; ring; disk; roundel; minimal concept; contemporary art; trendy; conceptual; top view; flat lay; copy space; empty; space;