Ignore the other guy, he seems to be ignorant about what is planned for the game, and is rude to boot, waste of time engaging with someone like that.
Actual answer incoming. No, there are currently no other foot worship scenes that have a CG, in fact very few scenes in the game have a CG as of now, should be low single digit number. More CGs are planned, so if anything you are just too early in the games life circle to get what you are asking for. Not gonna lie, given the snails pace at which new CGs are coming out so far, you may have to be very patient, speaking several years, before you can enjoy more foot scenes with a CG, as the current rate is several months for one new CG.
Not too many monster girls have foot stuff as a main scene, main scene is the most likely to get the CG for the monster girl, doubt giving several scenes per monster girl will ever happen, popular exceptions like Ceris who got an event seduction CG before her main scene CG aside, IF it does happen on a grand scale there is a good chance we as human beings will have expired before that day. Ultimately there will be more CGs for scenes, some of which will include the foot fetish stuff you desire. It is not guaranteed that the CG pace will always stay as slow as it is now, especially once the story journey part of the game, which includes implementing new areas, is actually done, so here is to hoping.