That looks great. One idea, what about making manticores the earth pony equivalent? The one in the Everfree Forest was essentially a lion with a scorpion tail. So you could have a progression from manticores with a non-grasping stinger tail that do basic work like farming and masonry, griffons that do more complex work like crafting and armoursmithing with their beaks and tails, and then sphinxes doing mechanics, surgery and weaponsmithing with their three graspers. I'd give the sphinxes a forehead gem for grasping, though, hankies on the brain is slightly too Monty Python even for this mod. For sizes, it might be an idea to do what I did with cave ponies and make lions/manticores the largest(after the royals), sphinxes next, then griffons smallest but with the 20% speed boost and flight.
A pony just made the first ever batch of plain longland dough, using orange wine as moisture and raising agent and a chunk of lion pony tallow. Then he ate it, raw. I'm going to have to rejig the reaction quantities, but the system works(dough is classed as plant cheese, in case you're wondering[I'm lucky I noticed I missed out the "L" in plant before I posted *shudder*]). I'll add a bread/cake material, so people can bake if they prefer but my idea was to cook it and say it became bread during that. I'll also adapt Dwarfu's butter statue/figurine reactions from
here, with permission as you can see, to make figurines and statues out of bread, butter, cheese and the various forms of chocolate, too. Luxurious crimson banana gateaux figurines will work out as being worth much more than gold, but I think the length of the production line warrants it, not to mention the rarity of crimson bananas. I'll add a separate building for making blocks, rocks and furniture out of dough and such, so I can comment out the building permission in the entity files and anyone who wants their mod slightly crazier can add the square brackets back in, like they can with the TRAINABLE tag lemon trees have.