a4 painting 4k handmade hard cardboard 200g color paperboard 230g colored paper 4 open thick cardboard a3 background hard paper 8k

4 open high-end handmade cardboard(4开高档手工卡纸) 8 open high-end handmade cardboard(8开高档手工卡纸) a4 high-grade handmade cardboard(A4高档手工卡纸) a3 high-grade handmade cardboard(A3高档手工卡纸)

bright red(大红) pink(桃红) flesh color (jade color)(肉色（玉色）) pink venus(水粉色) rose red (bright pink)(玫红（水红）) pink(粉红) light pink(浅粉) violet (green lotus)(紫罗兰（青莲）) dark purple(深紫) middle purple(中紫) light purple(浅紫) pink purple(粉紫) snow green(雪青) orange red(桔红) orange(桔黄) golden yellow(金黄) medium yellow(中黄) lemon yellow (light yellow)(柠檬黄（嫩黄）) light yellow (beige)(浅黄（米黄）) sapphire blue(宝蓝) dark blue(深蓝) medium blue(中蓝) sky blue(天蓝) light blue(浅蓝) dark green(深绿) emerald green(翠绿) medium green(中绿) grass green(草绿) light green(浅绿) brown (brown/brown)(咖啡色（棕色/褐色）) gray (silver)(灰色（银色）) light gray(浅灰色) black(黑色) creamy-white(米白色) mixed colors (10 colors, 1 pack per 100 sheets)(混色（10色，每100张1包）) white(白色)