I just want to add something that came to my mind during this whole debate... I cannot say anything about the mix because I don't know U-Kiss' songs at all and I refrain from commenting detailed if I can't compare. This whole discussion is, however, more about your attitude, AC. It's always okay if your mix isn't perfect because it always depends on programs, mic-qualities, instrumentals, etc etc. Your comments, however, make it seem like you don't want to change anything.
You have constantly been saying that your mix is perfect and even said that, while you wanted someone to beta it, you didn't actually want to change anything. I can understand that it is frustrating when someone tells you "you should change this and that" if you have spend so much time on mixing but it happens. Please try not to see it as a personal attack. Everyone gets these advices/criticism because a mix usually isn't perfect on first try, no matter how long you spend on mixing! It's simply because your ears get used to the way it sounds so you might not notice volume-differences or timing-issues, which is absolutely not a big deal if you are willing to change it(^-^
(Especially to prevent oneself to stick out too much a beta is good (> w <); I sometimes don't hear it as well because I'm so used to my own voice so it's always good if someone tells me and I can change it.)
I want to remind everyone that our attitude is very important here. I am sure everybody agrees that our abilities are not everything. We're not mainly here to bring the best and most professional covers, we're here for the fun that is online covering! But we can only have fun with this if we work together, keep others informed about our status (if you have time to spend a few minutes on the computer, please remember to tell us if you're too busy for recording/mixing so the mods or other members can take further actions, etc!), always watch our words, do our best, but mainly, work on our attitude and accept criticism. <3 On BR especially we have always had many members who tried their best to help others with advice as much as possible. Please embrace this as a way of improving even more and don't feel attacked as we do this with everyone equally!(^-^)