Dear Claira, I started filling up, But it is quiet long to finish. this you can take a limitation if the number of responses are low. Ironically, when i researched also, i used a similar kind of long questionnaire and got few reponses. But I availed some external help which you may be interested to get responses. try 'avail research help', which I trusted..! and I m happy to suggest to you.

Hi.. I did my thesis work past semester in which I explained all the images with the caption 'Figure: 1_Relevant information about the image' - It can be the overall message about the picture, not the results. you can split (a), (b), if it is multiple or collage of images like TEM, If you need any help in this, search as avail research help where the team will help you. ;)