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Do you want the whole truth, or a sugar-coated version?

Alright then. Since you already know the heads are hella big, then you might have noticed that that's the main problem. At least, the cause of the main problem. (To me, anyways.) Which would be the bodies.
You've got the concept down. You know what you want to do and you're trying for it. However, you're going about it in the wrong way.

The head's too big for anything but a bust, at most. You'd be better off to do just a head/shoulder thing, if you wanted the size to be correct. This leads, pretty much, to proportions and stuff.

Proportions are what's wrong in most pictures that look 'off'. Your bodies, for instance, are WAY too small; and that's only part of it.
The girl looks a bit like you drew a small oval at the end of her neck and ended the planning there. Her arms look like noodles, curved into the egg shape, and her shoulders take up most of said egg.
You should move her breasts up, make her arms look like arms, and give that girl a cheezeburger or something because with a bust and head like that she'd snap in half. This isn't even about proper body proportions, because drawing girls with cinched waists is fun sometimes, but because if you draw her waist like that where it is, she looks...off, would be the only word I can find.

The arms:

They should be longer, for one. Look at yourself in the mirror. Your elbows are where her arms disappear behind her back. So, unless she wears her bracelet on her elbows, that shouldn't be there.
Also observe how your arms do not curve like that, unless your bones have been sucked out through a tube.
If you want her to have her arms folded behind her back, that's entirely possible, and you can even have that bracelet there. Extend them out at about a 60 degree angle, or something, and then bend them. Again, use a mirror. Trust me, it makes everything WAY easier.

Her chest:
Move it up, and make it thinner if you're going to keep her waist that size. It looks like somebody took her ribcage and put it in a taffy pull.

Her breasts, specifically? Move them up too. They look like grandma boobs where you have them.

And her face? try making it thinner around the eyes. All of that space is what makes it so enormous.



For the guy... Well, I'll put it bluntly.

Boys have boy parts. He looks like he has none. I'm not saying draw some porn, but crotches do not look like triangles. Try rounding that point out, or putting a straight bit at the top.

His arms are a problem too ; They're way too short. A good rule of thumb is Elbows=Hips, or close to them.

Hands? Well, hands suck, but you should at least try to make it look like they don't have paws.
And as for armpits, you wouldn't really see that space you have there. Place the line for the bottom of his arm starting slightly lower down on his torso line, and...well, it's really hard to explain.



You know what? I basically just reccommend looking at a few Anatomy tutorials on Deviantart.

well im not tht good of a artist myself , but thts ok .. just keep practicing and they eyes are really good ^^

TBE
I was wondering you use the "wire" Frame approach then "Fill" it with circles, squares and cylinders?
That’s how I started.. but sometimes when I'm being lazy I skip some steps.
Also when I first started I would practise individual body parts. I still do that to this day actually espically with hands. If it helps (And you'd like to do a little extra research) Investigate some of the joints, it certain helps to know the realistic limitation of the human body.
I’m still working on my antinomy skills so I don't want to say anything that will mess you up. As for face I think that my skills are decent.
So, I drew two faces (using the same sized circle etc), one with some of the feature that I saw in your last picture (yes I did make them a bit extreme, so please don't take offense. That's not what I'm trying to achieve by doing this, I just want to help you out). The second face, I drew is in my “style” of drawing so there is no need to think that the way I draw my eyes or mouth etc.. is the only way of doing things because it’s obviously not, as you can see from the vast variety of art out there.

(made on MS paint, kinda rushed it sorry sweatdrop )

as a first try its not that bad... just keep improving on head to body proportion and hands. it would help if u tried to do full body drawing so you can see a more zoomed out look, then you can go more into detail and greater size

Yea. You just need practice. You did get better after the first couple posts though. Good job. I can be hard-headed and overlook them for a few minutes before I take the tips to heart, lol.

Anything ;] sorry lol im impatient