You did an excellent job for your first animation - this feels like something I'd see in an old-school platformer game. I like your color palette, too; it gives off something of a "Hill Top Zone from Sonic 2" vibe. Kudos for your hard work!
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Thanks man , Sonic was my first game thats funny .
My graphist leave me alone so I have to learn how to do animation by myself and its not easy !