Wow, yay for art class, indeed to get this kind of assignment! o.O Excellent job on all the complex reflections and refractions caused in the coca-cola bottles... and the mirrors. Good lord! I hope your art class was mightily impressed with this drawing. The glass bottle just rocks :)
My only negitive impression is that the flowers get a little lost in the physical flowers and what appears to be the reflection of a mirror-table beneath them. The color in the reflection is a bit too strong and competes with the lovely and uber-bright blooms. And where I can tell where the light is coming from on the bottle due to the extreme highlights, it kind of gets lost on the flowers. But then, yellow is hellishly difficult to work with at the best of times :P
But overall, VERY awesome drawing there, I love the complexity and subjects!
excellent job. Especially n the bottle