Poster for a sustainable air purifier start-up firm

I am working on creating the brand identity for a start-up which is coming up with a sustainable air purifier, using plants and IOT to set up modular block-like structures in homes and small indoor spaces. This was one of the options I created, with a logo that works both as a flat logo (hexagon when looked at as flat) as well as giving the impression of a cube. This was a poster I designed to showcase the logo to the client. Through the illustration, I wanted to depict an earthy, rough look, to show the connect with nature. Let me know what you guys think. I have also tried out gradients in a variant of the logo.

PS - Worked with @Rima Darji on other options for this same project