No label, retro looking dress, need help

I'm addicted to geometric prints! Found this at a thrift stores. No label, polyester, appears to be homemade, some alterations at sleeve shoulder. Wondering if it's vintage? If so, what era? Thanks in advance!
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Altered at shoulders

Waist

 

Pretty print. My guess is that it's from the past 10 - 15 years or so. It looks like the dresses made by Max Studio. They often used art nouveau and art deco-inspired prints. The fabric used for these dresses was super stretchy, so I can imagine it stretching out and needing to be altered at the shoulders.

 

Agree with Jo. Nice, flattering style, the sort of thing I used to wear a lot of about ten years ago. In fact I think I still have similar styles in my wardrobe.

 

Thank you ladies!