According to I want to connect to the Twitter app and post an image from Make, you will need to connect Twitter v5 to post images.
If your image is too large, may I also suggest you try to convert your images to JPG and/or resize it down? You can use the Image modules to do that.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!