Everything on my palette turned brown. I swear I only mixed two colors!

How to say “Everything on my palette turned brown. I swear I only mixed two colors!” in Japanese

In Japanese

パレットの上(うえ)が全部茶色(ぜんぶちゃいろ)になっちゃった。混(ま)ぜたのは二色(にしょく)だけなのに！

Paretto no ue ga zenbu chairo ni nacchatta. Mazeta no wa nishoku dake na no ni!

Everything on my palette turned brown. I swear I only mixed two colors! in other languages