>>30372771I give this belly a 9/10. It's a very solid belly, but with minor things holding it back from being at the top.
The lighting is very well done, with a clear source to the left and a strong contrast there, but with more subtle shadows to clarify the belly's shape where necessary. The overall shape is a elongated, subtle hourglass - it fits with Fubuki, and since this is "official" art it makes sense to stick true to the model's shape. It's a middle ground that fits Friend very well - between cuteness and a more womanly, fertile look.
The aforementioned shadows and the v-lines give us a good impression of the inward curve of the belly towards the legs and the mons pubis. The lower belly is such a treat because you can imagine how it'd feel very well, even without heavy contrast or linework. Apart from that area though, the belly's relatively flat, which I can respect as a choice. But I have a slight preference for a bit more roundness, a bit more fubufat around the belly button. It would give the upper half of the belly a bit more character, too.
Speaking of that, the belly button is maybe my biggest (but overall still minor) gripe with this art. The asymmetrically forked lines work for the overall piece (of which the belly isn't the focus), but up close it doesn't really do it for me like a deeper, darker belly button would have. The shadow around it and the vertical lines about it are good, though.
