As for SHOW the word count – It seems like a walk in the park, but one never knows.
I one of you are ready to test for me I would appreciate it.
Edit the file frontier_form.php located in the forms subdirectory: ../wp-content/plugins/frontier-post/forms/
and add the following line in line 59 (just after wp_editor call)
printf( __( 'Word count: %s' ), '<span class="word-count">0</span>' );
As for define min/max words – Validations are on my to-do list, but still not sure when
Picture in custom fields – You will be able to achieve this, once I extend the template functionality, but you will then have to do the php code yourself, as I don’t plan to support custom fields in the standard frontier-post, but enable the users to do it them selves.