Sure, I will add the chest as a separate sprite. And for the particle effects I assume you mean the splash from when the sludge hits the ground? If so, that should be fixable I'll look into it.
Awesome, yeah, if you're able to add the splash from the sludge (the one from falling) and maybe even the sludge pool (it currently has an animation, but I don't think it's the one shown on this site's gif, but I could be mistaken).
