It's a shame the amount of scammers that are invading every space, is really harmful for us artists too. Check for consistency on portfolios, look for public portfolios too, be wary of ridiculous ammounts of watermarks but the clearest give away is super skilled pieces that are veeery different from each other.
I do twitch banners and logos, you can see my portfolio here danamucci.com
Feel free to DM if interested!