Thanks for the comment I think I will try and fix what you said and resubmit it.
You are still learning and practicing and this is not that bad for still being new. Just talking about pixelling pixelart and coloring techniques this piece has several areas that are not that good but I'll only bring one up for now. The patches of colors in the wolves have an outer edge which i assume you were trying to blend into the white. That, in pixelart does not work, is ugly and considered poor technique. What you have is banding and if the area was smoother would almost be pillow shading both of which are bad habits you don't want to learn.
Whatever technique you do choose then you want to have that in the whole piece. Consistent bad pixelling/coloring at least have a shown direction, ya noes. Here that you did not use the same technique in the ground looks a bit lazy even if your intent was to focus on the wolves and not the ground.
Have you seen cure's pixelart thread in the forum? Its a great read. The forum is there for help from others too and a place to get feedback, ask questions amnd anything you need at all.
Don't resubmit. Use the 'edit it' link under the art to update art.