Downloading file with C# how to specify file name?

[myndeswx]

Hello, I am downloading images with such code -

var captcha__get = ZennoPoster.HTTP.Request (
    ZennoLab.InterfacesLibrary.Enums.Http.HttpMethod.GET,
    url: "https://p77-sign-va.tiktokcdn.com/tos-maliva-avt-0068/8c67814a897e484c91b15421bddc2e50~c5_1080x1080.jpeg?x-expires=1658527200&x-signature=Up7ipaA%2FzsFJRwNWGcPgQKXfDnk%3D",
   // proxy: project.Variables["proxy"].Value,
    respType: ZennoLab.InterfacesLibrary.Enums.Http.ResponceType.File,
    Timeout: 50000,
    UserAgent: project.Profile.UserAgent,
   // DownloadPath: project.Variables["saveImgPath"].Value);
    DownloadPath: project.Directory);
   // cookieContainer: Project.Profile.CookieContainer;

var image = System.Drawing.Image.FromFile(@captcha__get);
string base64String = String.Empty;
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
                image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                byte[] imageBytes = ms.ToArray();
                base64String = Convert.ToBase64String(imageBytes);
}
//отправляем капчу на решение
var result = ZennoPoster.CaptchaRecognition(project.Variables["capchaService"].Value, base64String, "");

In the logs we get an error-

I guess it is happening because the file is named ~c5_1080x1080.jpeg
So the question is, how to choose a different file name when saving the file?

Thank you