[quote name='crystalklear64']this is where the "you don't have to do it pixel by pixel but it should look like it" comes in. anti-aliasing and blending with more than one color adds a ton of color information especially if your snowflakes are transparent (since then it has to create the various shades of color to make it look like the snowflake is passing over the top).
there are a few things you can do. first, clean up your image. use as few colors as it takes to make your finished product and be wary when creating in photoshop with anything other than the pencil tool. for example, the teeth on that particular avatar are clearly anti-aliased, using shades of grey instead of white and black. so you could redo the teeth and eliminate a few colors there.
next, your snowflakes have some sort of transparency on them. you can tell because they look nice and crisp when they're floating in midair (nothing for the transparency to work with so photoshop just says

it) and "blurry" when they pass over the avatar's body. this is the same issue with my snowing animation. its nice since it doesn't obscure the avatar as much, but it adds more colors and when 20.5 is your limit every color counts. so you could redo your snowflakes to be solid non-aliased objects.
if you want to be really lazy like me and say "well shit i don't feel like redoing an animation" (i still recommend redoing the teeth and eyes if only for aesthetic reasons) there are a few things you can mess with assuming you're using photoshop. when you go to save your file be sure to pick save for web and devices. this will pop some shit up with a bunch of options. here, you're going to want to find a balance between loss and color that still ends up being under 20.5kb. this balance is something you'll have to find yourself for each image and is "to taste" meaning maybe in this image you want more colors or in this one a grainy animation actually adds to the image so you can get away with really bumping up the loss while keeping your colors. if you made your base image with only a few colors, say 8 or 10, transparency colors accounted for, you can usually get away with 32 or less colors and it will still be full or close to full quality. if you've got a lot of base colors, 32 will still be your goal, but you'll almost certainly have to make the image lossy to compensate. here is where you find your balance.[/QUOTE]
Thanks for taking the time to explain. I'm using Gimp but I've played around with it enough where everything you just said makes sense (at least enough to know how to correct what I'm doing).
That particular one I just took a logo, "pixelated" it and copy/pasted it into the template to use as a tester for animating. But I think I might use it if I can get it under the limit (it's only at 25k now) since I rocked the teenage mutant ninja cock last year too. As for the snow fall... I've BEEN using the pencil brush (or at least the pixel size tip) for everything but went with a bigger paintbrush tip for the snow and left whatever default coloring settings. I think I'm gonna re-do the snowfall because I effed up on one side of things.
Sounds like my tron cock is SOL as far as animating unless I totally redo it seeing as how I abused the hell out of the "blur" tool to get the left nut to look like it does, but good to know for the future. Too bad about the 20.5k limit.. wasn't there debate over upping that limit specifically for cocksmas last year?