From Source:
 
Hey guys^^  
You might be wondering: It´s another Anthro drawing, yes. This is because it´s kinda funny to draw human bodies and practice drawing different body types :)  
Just to answer some questions. Why is Lyra chubbier than the other ones? Well, in my opinion or head canon, Lyra has a weakness for delicious food, which can be made by her lover BonBon quite wonderful^^ So she likes eating and sweets :P  
Why are their clothes so boring without any patterns/symbols etc.? That´s because I´m focussing on drawing the clothes in general and just trying out the shapes, because I´m still pretty new to it xD But sooner or later, when I´ll be working on Anthro pics, I´ll surely come up with better designs^^  
Why is Derpy so skinny? That´s just because I wanted to make her softer and smaller, so she looks even more adorable :) That´s it^^  
If you´ve got some more questions, just let me know :)  
I really enjoyed drawing it and it was great fun to figure out, how their body shapes could look like^^ I´m still struggleing with hands and some other small aspects, though, but nevertheless, I´m quite proud of this drawing. What do you say? I´m looking forward to your feedback^^