-How to Recolor-
Okay, you should never use an unchanged Kirby for the character's sprites, (unless it's actually Kirby) so that's where recoloring comes in, so when you're recoloring, don't use a single color shade for each part, like have single shade bright green feet and a single shade bright pink body.
Oh, and also don't use eye killing colors, just don't, who knows if a reader that one day comes across this comic has sensitive eyes? do it for them, but also, use shading in your character's sprites, heck, you can even use the base Kirby's sprite's shading as reference for it.
See? that's good, also, don't forget, Black can be sometimes hard to work with when shading, since you know, its the source of shading.
Now this is important to a character, to not make them overpowered, and by that, I don't mean they can't die, I mean they're too strong.
This character doesn't have ANY balance whatsoever. If there are strong powers, they should have limits, while the small powers have light limits, Hey wait, isn't that the badly colored Kirby from before?
This character has a lot of small powers with a light amount of limits, while his strongest attack has a great cost.
-The most important part: Personality!-
This is the most crucial of these tips, Every character needs a personality, otherwise it's an emotionless, monotone, robot.
This character is a Mary Sue, it's a character with a perfect personality, with no downsides, at ALL.
This character has some good qualities, but also has some downsides within it, like he may be smart, but he can never understand random.
-Official Kirby Abilities-
Why limit your character to the most famous choice of ability? choose the one that fits THEM, just don't pick these, for the sake of EVERYONE.
-Any Kirby Final Ability, like Star Rod, Master, etc.