Texture Pack for Mob:
Let make a custom texture for in game mob
example: I want to change villager skin/texture into spaceman so I edit it skin/texture on UTK.io

Custom 3D Skin:
Minecraft 0.14 and up has support 3D skin like a hat, ear, helmet, etc and it very useful if it customable because we all dont like skin pack most people will use custom skin so we want more detail like in christmas, make 3Dchristmas hat and on halloween we make 3D pumpkin head

Shop:
Shop would be useful for addictional item that can be purchase with diamond or ads. Like I want a colorful name on UTK.io app to enable the feature it will cost a diamond.

Here a addictional feature:
Unlock minigames
Buy more minigames
double minigames coin/score
handy tool (for texture pack and skin maker)

Minigames:
minigames on minecraft community app? That would be cool! Utk will be not just a tool but a games too!!
Minigames in utk.io should be 8-bit looking or Minecraft style.

Minigames catogary:
Tower Defense
Simulation
Multiplayer
Adventure/Story
Dash

Minigame games:
Nether Defenses (Defenses from Ghast and Pigman attack)

Please implemented this idea, it took an hour to write and think for this awesome idea.