It looks very good! FFT style portraits are hard, but you did really well, You could change the clothes a little bit perhaps, cause they remind of Ramza, but other than that it's a nice quality portrait
Haha, Barney the Dinosaur. Yeah, the Dragon is a much better approach, Like you mentioned just fix the shoulder, chest, and I would give him scales too. I don't know about those grey pixels on his mouth(tooths), perhaps erase them for now and mess with them later
Overall, Great start, clearly you're trying hard to grasp this style, and this is your best approach yet I would say
You can always use Cocatrice as reference for lizard feet, and Dragon's are perfect for back frames, should you have trouble with those. You can find some aid in those two if you have no idea how to make stuff look. For the tail, Ahriman could prove usefull. As for the sprite itself, have you thought about lightening the lightest brown/skin color a bit more? It might work nicely on small view, make it clearer looking(and give that eye a bit of a more definition).
Overall the shapes aren't too bad, it's the shading that is the issue here. It has pillow shading in some places and banding. I would suggest using Wiegraf's hair and copy/paste somethiung that will look similiar instead of customing it, since doing custom portraits is especially hard. With some work, it will work out
Neck on portrait is pretty bulky, mainly due to that darker skin tone on the side. Would you mind posting normal sized portrait and sprite too? For the sprite, the fur could use more shading. You might wanna try harder on making his hair different from Wiegraf's a little bit more. It's coming along nicely