It's important that developers can quickly see what they will be changing about their code when they merge a commit. I'm pleased with the detail of the commit messages, but remember that the first line of the message should be a clear summary of the changes.
Convention is to start the commit message with an imperative. It should look like an instruction of what to do with the current code, for instance: "Add logger to Card class".
The same goes for pull request titles. I believe GitHub uses the commit message of the last commit you made when you made the pull request, but you can edit this to give a more appropriate summary of the changes you intend to merge.