Really nice work indeed. 
Your prices are expensive, minimum 88$ USD for an icon/logo, and minimum 175$ USD for a thumbnail. Maybe decrease 88-175$ USD to 74-165$ USD? For thumbnails maybe change it to 167-295$ USD? These are all my suggestions, feel free to take them.
I also think you should give some more info on your prices. Try giving more details on upcoming sales, because I can guarantee some people will want sales on your current prices. 
Now don’t get me wrong, your work is stunning. If I had the money I would love a render from you, but yeah, maybe just update the prices a little bit.
I hope that update in price made the prices cheaper.
Good work,
11/10
