i think an information like this should put it there to help player see what crest and talent current level their hero have so player no need to click on hero to look it one by one
Indeed it would be good, not covering picture too much, and still it would be quite clear what that hero have. Althout i though to put insignia/crest set(only if this is set effect) above Talent, but below star lvl. All info would be close to each other, and it wouldn't be confusing, to whom it belongs.
But i agree on that suggestion.