General Spriter's Showcase!

[Pokemon Trainer Sarah]

I like the second one too! The brown in the first one doesn't go as nicely with the tan colour. But now that you mention it, the colours do look like the Sandile line. It's probably a different enough design that you can get away with it though.

The blade on the tail looks good! There is a spot on the back of the head where you have a little right-angle and it makes the outline look a bit disjointed at that point. The shading looks pretty good. I probably prefer more (like I would add an extra dark shade to the curled body part that is behind the neck), but if you're going for BW style, then it looks about right. The bottom jaw looks a little bulky for a snake, but that could just be part of your design, so disregard if so. Teraconda is a really cool name!

I hope something in there was somehow helpful. xD