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Delta Treecko Line: NEED HELP

So I saw this idea online, for a Steel type Treecko line. I’ve tried to make the sprites, but I can’t seem to get them right. Could someone help me? Thanks in advance!
Here are the images:

Asylian Sceptile (Mega)

There pretty good, but i’d say u should make them look less like the original Pokemon. Maybe make the tail more like a drill or something like that.