First of all, welcome to the forum. perhaps you could go to the Introduction section and "introduce" yourself, tell us a little bit about yourself, what you have done in wine and what you hope to do.
I have made the GC white zin but not this GCI one, but regarding the color, a couple of possibilities - sometimes the carboy glass changes the color slightly, so that could be it. Another possibility is that the juice was oxidized if the kit was old - do you know the date code on the box?
Regarding sweetness, you will probably have to sweeten to your own taste by using a simple syrup (water & sugar) or a commercial sweetener. You would do this before bottling.
Okay--As I said I am very new to wine making! I must confess what I believe happened now that I see the answers is that I started this wine when I had another in development and only had one air-lock. I decided that the main point of having he water filled air-lock was to keep fruit flies out. I simply placed a piece of cardboard over the vent on the carboy. I thought this would let a little air in, and keep the flies out. I realize now after reading that the oxygen needs to be regulated during the beginning fermentation. Please forgive my obvious ignorance--I am learning!
Now my question--is it too late? I read a link on this site after my first submission about an additive called Polylact that will help if the color is off and the taste is off.
I did not know how to attach that thread, but it is titled "3 year old wine kit=brown wine?"
I am happy to have the support--please let me know if it is too late to fix my wine!