The VG Resource

I have no more ideas to do extra sprites, tell me which idea would be good to add more sprites

The immediate thing that jumps out to me is the lack of contrast between shades and pillow shading, especially on his limbs.

I would have focused on working on the style of just one of the sprites before making any animations. My issue with that is because I can already tell that if I were to put the frames together in a .gif that it would just look choppy.

You have to remember to focus on one thing at a time rather than trying to make everything then putting it on a sheet. Try taking a few steps back, correct some of the issues that Ton pointed out in the idle sprite. Then the next thing I would probably do is make a few rough animation frames for the walk cycle. That way you can get a better grasp of not just making the sprite but being able to animate it as well.

you have a good idea for things but the execution is poor. Making a "building parts" approach for character creation will often yield choppy and weird animations, so never be afraid or lazy to redraw poses. That's how animation works.

the colors lack contrast, hueshift and pixelart care (exploding bomberman is just a ball with white lines forming an asterisk, that's not how exploding works.

All sprites you tried to upload are rejected

  They say it's because it does not meet the quality of custom / edited

I do not know what the custom / edited quality is.

it means that your pixel art is not good enough to be approved.
It usually means that there are some technical flaws with the drawing or with colouring.
UPDATE: it seems that they already pointed out the flaws with your work here: https://www.vg-resource.com/thread-31223.html

I need help to finish the sprite sheet

Hey can you please keep everything into one thread? It would be much appreciated instead of having to navigate between all the threads that you have made relating to the same subject.

Your Second Thread
Your First Thread

EDIT: That and to be fair, this does feel like a request. If you read the criticism we have given you to begin with and asked questions if you weren't clear on anything we would have gladly done that for you. We're only here for advice, not to do everything for you. It just comes down to a fact that you have to do things yourself to get better.

Hello again, The spriter. We don't take kindly to bandodgers here. Or sprite thieves, for that matter!

EVIDENCE OF THEFT:
(EVIDENCE LOCKER: Sheet #1, Sheet #2, Kelvin's original sprites topic)

• The Bomberman pixel art in the first sheet of yours was nicked from James Beaver, whom you didn't credit (but you did for Kelvin).
  
• The pixel art on the second sheet had been stolen from CaitlinTheStarGirl's SA3 Character Select-style sprites, namely the Red Bomber's. You completely ignored the note left in the description...
  
• And finally, not only did you use Kelvin's sheet as a base for your new one (whom you decided not to credit this time), the head sprite was taken from Ahruon / Butler Wolf's sprite for Card Sagas Wars!
  

You, sir, are nothing but a thief! This is the same kinda crap you tried with your previous account. Locked and re-banned.