I don't think it makes it look ugly persay. I think winter is just a kinda meh season for a lot of people anyway, and people get S.A.D. and it's cold, and miserable, and I think the snow kinda reminds people of that. AC is supposed to be a game to take you out of real life for a while, but still resembling real life and stuff. That being said, I'm not doing anything else on my 2nd island until it all thaws out because I feel nothing, it's not inspiring me, it's not making me want to continue forward with editing the island and stuff, and I can't visualise how I want it to look properly. A lot of people seem to compare AC with Stardew Valley, and I think if AC had a bit more stuff to do in winter other than catch snowflakes and make snowboys, and the odd fish/bug tourney, it might make people warm up to it a bit more, pardon the pun.