Your single render looks very good, but there is not enough info to compare the offer against others.
Definitely needs more renders , like close ups and wireframe.
Also polygon count is a very important thing to know.
UV layout and texture resolution would also be valuable info.
On the bottom of the page we get a similar offer for around 40 dollars, but is providing all info, most would not take risk and pay a bit more and probably get that one.
If your uv's are (maybe) a mess and your model is a dens chaos of polly's, you should just display it.
In some situations it can still serve some end, but the customer needs to know about it.
Being vague about info does not gain trust/credibility, also it's a potential risk for getting negative feedback.
