Multiple photo uploads from ReactJS

Question

I am new to development. I have a C# WEB API backend. I have a functionality in the app where users can upload multiple pictures with comment.

How I am trying to save multiple photos is I am saving the first picture from the files array with one post request. Then I am saving the rest of the photos by comma-separated in the database table from the files array with a different post request. This way I can successfully save at most 2 pictures. The others never get saved in database table. Could you please point me out what I am doing wrong, or what modifications I must make? Here is my React Code:

(Today() method saves the first picture, then the tomorrow() method is called inside the today method to append the rest of the pictures).

const today = async (files,e) =>
    {
        e.preventDefault();
        const formData = new FormData();
        formData.append('UId', userId);
        formData.append('UEmail', userEmail);
        formData.append('FComment', comment);
        formData.append('FImageFile', files[0]);

        axios.post(Config.POST_COMMENT,formData) //Config.POST_COMMENT has the URL for api
        .then( res => {
            setComment("");
            console.log(res.data.fId);
            console.log(files.length);
            if(files.length > 1)
            {
                console.log("image length 2");
                for(let i = 1 ; i <files.length;i++)
                {
                    console.log(`sending ${i} image`);
                    
                    tomorrow(files[i],res.data.fId,e);
                }
           }
            setLoading(true);
            toast.success('Comment has been posted',{ //THE SUCCESS NOTIFICATION
                position: toast.POSITION.TOP_RIGHT,
                hideProgressBar: false,
                autoClose: 2000,

            });
        })
        .catch(err=> console.log(err.response))

        

    }
    const tomorrow = async (file,commentId,e) =>
    {
        e.preventDefault();
        const formData = new FormData();
        formData.append("FId", commentId);
        formData.append('UId', userId);
        formData.append('UEmail', userEmail);
        formData.append('FComment', comment);
        formData.append('FImageFile', file);

        axios.post(Config.UPDATE_COMMENT_IMAGES,formData)
        .then( res => {
            setComment(""); // AFTER THE COMMENT IS POSTED THE COMMENT GET CLEARED FROM THE COMMENT BOX
            document.getElementById('imageUploader').value = null; //THE CHOSEN IMAGE FILE NAME GET CLEARED AFTER COMMENT HAS BEEN POSTED
            setCommentId(res.data.fId);
            console.log("2nd image uploaded");
            console.log(commentId);
            setLoading(true);
        })
        .catch(err=> console.log(err.response))

    }