ive started to notice the use of in-out easing and images that echo another. these two combined make for some great feeling explosions esp when it's layered on top of your usual ease-out movement of particles,debris,etc..
I have been studying ssbu marth's normal attack to observe how the fx compliments his character animation. These two components complement eachother like pp&j- they look amazing when synchronized properly.
I will create my fx with the animation in mind, vice versa!
i bought this book about the language of color & have been observing nature's natural colors. pretty cool how these colors make us feel & think about. so i drew random colors with certain emotions in mind