Slack Alert notification is not same as email notification

Hi,
I have slack and email notification for my alert. Email alert includes images and many lines according to Slack alert. For example; Email alert includes 10 metric name but Slack alert includes only 6 metric and also not image.

channel screenshot is below;

alert screenshot is below;

grafana.ini configuration like this;

[external_image_storage]
;provider = local
[external_image_storage.local]

Version: 7.1.2
Data Source: Elasticsearch

How can i solve this problem can someone help?

Is there anyone to answer my question?