I saw this set on facebook via 1 online fashion shop, I love the color matching so I tried to make one for myself instead of buying from that shop LOL.
The shirt was sew based on the dress pattern, I just use the top of pattern, and modified the bottom part.
The trousers also based on wide leg trousers pattern, but I'm not good at sewing trousers, luckily the shirt can help to hide the worst part of the trousers haha.