I'm building the base model and I need you help

Wow! Thank you for the detailed feedback. There's some really good points here I'll be using as a reference

If you are looking for absolute perfection, there are quite a few options that you could potentially add. I absolutely don’t expect you to do all of these, but I hope they at least give you some inspiration. Overall body size: the general round body size compared to the smaller elements such as head, hands feet. Divots/limb and neck elements: depending on who you ask, the limbs should be handled differently on berries. Some prefer divots, where the hands and feet are pulled into inward facing cones as the body swells around them. ( similar to the 2005 version) along with this there could be plenty of options. Divot depth and diameter. Hand/foot depth in the divot. The sides could have a variety of details, from being shallow slopes, to tight puffed puckers. On the other end of the spectrum, some believe limbs should still expand, but push out instead of in, creating domed bulges for arms and legs, for the hands and feet to rest on. Obviously you could always go even further and add another option that goes directly between and allows for hands and feet to stick out flat from the round body. Belly/butt: some people enjoy berries to be pudgy instead of round. Adding a belly and/or butt that can bulge out can change the tone from rounded features. Low and high pressure: giving the body a few more folds and flab, as well as a slight teardrop shape can give a sense of a lower pressure berry, looking softer and more like a water balloon. A more perfectly round smoother body, with tight pinch points, gives a sense of fullness and high pressure. Hand/foot movement: everyone loves some nice hand flapping and foot kicking. Squeeze and squish: if you really want to take things to the extreme, you could add options for squeezing and squishing the body shape. Would be perfect for situations where the berry is stuck in a door way, or pressed up again a flat surface. Maybe being squeezed around the middle by a tight belt. That sort of thing. Chubby cheeks: some fans love when not just the body, but the face plumps up too. Lip/mouth/tongue movement: lots of variety can be done with the mouth. Crying out for help. Blowing a gum bubble. Lots of potential for various emotions of use of props. Hiding things for clothing: if you ever plan to add the option for clothing the berry, some elements would be good to smooth out. Smoothing areas like the belly button and nipples can make it easier for clothing to better fit the body shape. Even beyond all of that, there could be plenty of potential for morphs and alterations corresponding to external props. There are plenty of situations that you can put a berry in where certain areas could be impacted by elements other than the berry itself.

dizzy