Echoing above, I also agree your sketching looks strong. However, I would increase the lineweight, some of the sketches in blue are extremely hard to read on my screens, and one screen it actually even disappears completely. I would either change the line color, or increase the weight, or both. Luckily this is simple 
Edit: I would also omit the Vodka glasses. Aside from being on the controversial side of things (which some may look down on, some may not just know this if you keep it that you may be overlooked by more conservative companies.) there’s just not alot of interesting content and its basically a copy of an existing design.