Help on some posters pls

Hi, so I was told about this work by my professor and I applied for it and they gave us a task to do for posters for the Instagram carousel. The company is called waste loss and it’s about recycling old tech and home appliances they told me that they wanted a poster which contained periodic table into the design and the rest was up to me. Can you please give me any tips or anything I sent these already but I still would like to have some feedback also I’m not English and it’s not my first language and the poster is in my native language, but I want the feedback on the overall design. Also before doing the design. I used their brand book to make the design sit in and fit in with their existing design designs as well. Also, I’m waiting for them to tell me if I’m hired or not. Wish me luck.🤣🤣