Thank you for your suggestions.
Yesterday we released version 4.3 where we introduced improvements in the Image widget like Alt text with name and dimensions for every image, crop and resize etc. Read the Release notes for Sitefinity 4.3
for more details on what you will find in Sitefinity 4.3.
To benefit from the improvements you may upgrade to the newest version.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items