Small identifiable images should be converted to <pic>. These icons are identifiable with their small width and height. Compare your template output with my template in mobile:
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Compare your template output with my template in mobile:
My template: http://fs2.filegir.com/allisool/arrow1.jpg
Your template: http://fs2.filegir.com/allisool/arrow2.jpg
some similar issues:
https://instantview.telegram.org/contest/playstationlifestyle.net/template28/issue6/
https://instantview.telegram.org/contest/90min.com/template11/issue1/