Wow, I'm flattered, that's the first "fan art" someone make about my stuff. Did you used blender ? Or maybe Z brush or Sculptris ? The environment is really (really) awesome, but imo you should use less smoothing on the monster, and/or bevel the edges of the monsters before apply a smooth modifier (if you did that), to preserve the squared shape.
Yeah... even if I work mostly in 2D, I made 1 year of 3D modeling/animation during my studies : )
I don't know what to call them, except "minions" , but in the engine there are simply called : Monster1, monster2... etc but called them soap goblins is perfect !
There are made of simple blocky shape, I had to be quick and efficient during the jam. And their color is simply to make them more visible, to contrast with the background.
I'm not really a social media person, i don't even know how discord work...
Keep practicing !