When seeing your poster, the graphics in your background reinforce the environment is meant to be placed in and the function of the product. I like the way you have used the pointers to indicate your analyse on your poster.
I agree that the background really helps the viewer with the context of this product. It is not clear from looking at the product what it does, but the background clears this up for you. I think that overall it looks like a very professional poster.
The poster looks really nice, the poster background already given the context of use, the use of arrow is nice as it clearly indicate the use. Nice poster