Hey there, been enjoying the development of this little game so far. There's likely better spots too yap, but I'm meh around crowds so I'll soapbox SOME of my overly thought out suggestions here. If the Discord/ Patreon have already tossed these out, feel free too pass.
Battle Qol
The start of the game, fights are slugfests. It'll help that a character's starting skill is always usable. I suggest raising base MP, or reducing the costs of those skills.
Also, please give the Cow a 'Hoof Stomp' as her first skill, or something similar. Have it be either flat higher damage move, or damage and debuff that drains enemy attack power. Something besides JUST basic attacks too deal damage, and help her early game feel.
Side whining on skills. I don't agree with limited uses, except the 'growth path' based ones. Clearly there's more skills in the works, and I don't know the length of the planned late game combat. If there are more enemies like the Wolf boss, and have multiple stages. I'd suggest a costly item from the shop that restores all uses (Energy?) for the character skills at least.
Exp Grind/ Enemy Growth
Have felt the 'slow down' spots in leveling everyone else has noted. Maybe a 'Rank Up' Item for Each zone/ area an NPC sells that upgrades the enemies by at least ten, and gives them a visual upgrade and scaled up rewards too match. Have 5-10 growth stages(?), and upgrades the NPC's appearance too. Have the basic enemies cap at 100, if 100 stays the player cap. Also would mean players have choice too stay in a favorite spot/ enemies too farm.
Have the same NPCs sell/ trade for an 'Elite' version of said item for Special/ Bosses, or have it drop as a rare reward from random encounters/ mob fights that I've seen suggested/ battles with said bosses. 110 as their cap, possibly 5 stages of growth.
There could be character quests tied beating X amount of boosted enemies.
Characters/ Zones
Tying into the 'Rank Up item' suggestion. The Alley could give a Rat/ Mouse, or Cat character. The Forest offer up a Doe, or maybe a Bear.
As for new zones. Where's the Swamp? With a Gator, or Snake. A Mountain zone with maybe a Goat, or Bird of Prey (Hawk/ Falcon??). Mystic/ Magic realm, Dragon, or Unicorn. Desert home too a Jackal, or Scarab.
Growth Type/ Stages
For new paths can only think of Ass Expansion, or Hourglass.
Right now all chars cap on images at 45. Other than wanting at least one more stage for level 50 in general. I personally would be fine with every ten levels after 50 being a new growth stage too lessen the work/ or keep the characters from reaching silly sizes. If the plan IS for more stages for every five levels from 45 up... I won't be sad about that either.
Expanded Gallery
Yes Please.
That's my Ted Talk. Thanks for reading the ramblings... Oh can we get a Doe Shaman/ Druid enemy for a WG/AE path in the forest, please?