Minecraft Armor Fitting Perfectly/Being 3D and Water Bubbles

I want for the armor in Minecraft to fit the player model perfectly. What I mean is that the armor touches the player and there are no gaps between the armor and the player model. Like for the armor today the armor is not even touching the player and looks a little bit big on the player. When wearing the helmet you can see the gaps on the side and from beneath and looks like the helmet is to big for the player. I want the armor to also be 3D. For an example is Minecraft animations. Minecraft animations all over YouTube use this in armor and the armor just looks absolutely amazing in the animations and also makes people all over the world want to play Minecraft because they think Minecraft looks like that. But when they play Minecraft the armor looks nothing like that in the animations and they do not really have the same feeling of the game anymore. So I believe adding 3D armor and making it touch and fit the player model perfectly would catch the attention of more players to Minecraft and would make girls more happy about it since now the armor would fit their model and make boys also happy because the game looks a lot more better. I got this idea from the YouTube animation "Best of Dream | Minecraft Animation" and I want the armor from Minecraft to look just like that for a visual appearance of what I am talking about. Water bubbles. I want for whenever you jump in water and sink after the impact I want there to be very small bubbles around the player like in real life.