Edited to remove WORDS WORDS WORDS
This (NSFWish, nudity) is a faaaairly good reference for what you're doing: notice that there ISN'T a strong line for cleavage, because there isn't significant support that you'd get from say, a corset (or if they were silicone x: )
Boobs are basically sacks of fat, so unsupported, their weight mostly falls towards the bottom. Chris' paintover is fairly close, but still with cleavage -- this is wrong because the boobs aren't being squished together. Look at the photo! The gap between the breasts has very little fat on it at all, all that's there is the breastbone really.
http://fav.me/d2kq3kp
Here is a fairly nice primer for drawing ladies! It covers basic body shapes and drawing natural breasts of varying sizes (obviously a bit NSFW again)
Something else to remember that I'm not sure the primer mentioned (only skim-read it, really); breasts fall slightly outwards from the collarbone. You can see that in the photo I linked to, actually- they curve around the ribcage a little, so the weight is to the bottom and slightly towards the arms, rather than deadbang straight down from the pectoral muscle c:
This (NSFWish, nudity) is a faaaairly good reference for what you're doing: notice that there ISN'T a strong line for cleavage, because there isn't significant support that you'd get from say, a corset (or if they were silicone x: )
Boobs are basically sacks of fat, so unsupported, their weight mostly falls towards the bottom. Chris' paintover is fairly close, but still with cleavage -- this is wrong because the boobs aren't being squished together. Look at the photo! The gap between the breasts has very little fat on it at all, all that's there is the breastbone really.
http://fav.me/d2kq3kp
Here is a fairly nice primer for drawing ladies! It covers basic body shapes and drawing natural breasts of varying sizes (obviously a bit NSFW again)
Something else to remember that I'm not sure the primer mentioned (only skim-read it, really); breasts fall slightly outwards from the collarbone. You can see that in the photo I linked to, actually- they curve around the ribcage a little, so the weight is to the bottom and slightly towards the arms, rather than deadbang straight down from the pectoral muscle c: