I like the way you put your own unique spin on most of them, they're not just copies. Definitely added some exaggerated cartoonishness in places that I welcome. I think Fancy Pants Man's body could be a bit longer and Salad Fingers could be a tad slimmer, especially in the face. I think Time Fcuk dude looks the coolest here, but I also like the interesting-looking SBC and Dad. I appreciate you putting in the radish as well, so it's not all old characters. The reflection on the floor also looks sick.
Happy Pixel Day and thanks for making this awesome tribute!