The nice thing about this doujin is that it is a good example of the "OLD METHOD" of fan publications back in the 1980's and 1990's. Fan publications very much were focused on illustration with larger "posed" character drawings instead of today's multi-panel non-posed characters. Even without looking at the publication date, you can see that the artist is at the cusp between the latter 1980's and 1990's style since the 1980's and 1990's had very different character drawing styles.
There's so few Tenchi Muyo (and Kiyone) images, that the tags for those should be removed.