I am open to constructive criticism, as like you say for future updates, but this was pretty much the opposite of constructive, kind of insulting even. And then the rainbow paw person agrees with you right away, furthering the insult. I can take it though, I'm a grown man. And after all it is just a hack... and everyone is entitled to their own opinion of course. Your second post was much easier to see your point and take the criticism seriously.
Now, I can agree that my first post is a slightly rude, but that's the way I am, I speak what first comes to my mind in a rather blunt fashion. Plus, I'd argue that it's valid information in this case: If this is how people may react from seeing your hacks page, then they might be discourage from downloading it. In fact, I was getting really hype from the description and everything seemed rather solid until I saw said screenshot. (Of course, it seems there are some balancing issues now post release, but that's not entirely unexpected for projects that don't have considerably large amounts of testing done for them!) First impressions are everything when it comes to games, if something does not click right away people will stop playing or heck, not even try the product in the first place! :p
Although you said the person who sprited it is lacking skill. I'd like to see what you can do in terms of sprites sir, I doubt most people can bang out a sprite like the spider boss, so that does take some degree of skill wouldn't you say?
This is a faulty line of thinking, you don't expect people to be able to draw a mona lisa in order to have the right to criticise it. I suggest you leave such attitude at the door before you enter and release your work in an open space. :p
That being said, I AM a sucker for proving my point. (I would have replied earlier, but with plenty of university work on my hand I did not have the time to do this before today.)
This looks pillow shaded to me, hands down. On top of it looking ugly, it clashes terribly with the other sprites.
First, let's get rid of that shading. I'm not here to judge your boss design, nor can I clearly tell what certain parts of it are supposed to be for sure. As such, this shading will be done on a lot of assumptions, and the original creature designer should probably be able to do this better than me. Due to that, I'll leave the outlining and only focus on shading. FF6 sprites have the light source coming from where the camera is, albeit at a slight angle, they also love drop these white dots to mark shit. So first, I'll place some where I find it most logical on this sprite.
Alright, that's some better shading IMO. I'm sure a more experience spriter could do a better job then me, but this certainly works. I could probably have spent some more time on tweaking it to make it look more solid, but I have better things to do with my time! The wings did not have any texture on them, which is a bit absurd, so I added something somewhat decent. Oh and, two of the colours of the palette felt super redundant so they are not used as to save space. (Could probably have saved another colour by removing a brown, but whatever.)
Now, I realise you might not have as much freedom since you're both working in the limitations of what colours to SNES support as well as having multiple sprites share the same palette~ BUT, this is the type of palette I'd give it to breath some more life into it.
Lastly, if this is a possibility, I'd make these changes to the palette and give the maw another shade. I have no idea how realistic different coloured maw is from the rest of the spider, but I don't really find reality to be that relevant here. I also have no idea how feasible this is, since I have drawn the conclusion (based on the fact that the palette is larger than 16 shades.) that this is actually two sprites drawn on top of each other. But I do feel that making the maws a different colour is a great idea since it draws the focus of the viewer and varies up the rather monotone colours in the sprite a bit.
And there you have it!