I joined her Patreon for a month at the highest tier, $25, and...depending on how much you can afford that, I don't think it's worth it. She is beautiful, certainly, and very photogenic, but the frequency of her updates, particularly content at this tier, and the quality of that content (aside from some short videos there is no real distinction between a selfie at the $25 tier and a selfie at the $5).
I, personally, think that she is asking for too much at this level. $5 a month for exclusive selfies isn't bad given how carefully she's controlled her content (IE what she decides to produce, not necessarily how it is dissemiated), but $25 a month is pay-site prices, but she's not providing pay-site quality, IE professionally shot/lit photos/videos in a quantity that allows Patrons to justify that expendature (though what a person can justify to themselves will be on a case-by-case...some people will probably be more willing to part with $25 just to catch a brief glimpse of Lilly, certainly, given that her Patreon is pulling in over $4000 a month).
Just recently on her Patreon Lilly went to a professional photographer, but my patronage ended so I cannot say how this will affect her content going forward in terms of either quality or quantity. The photos looked good, but she is still releasing them individually, and only at the highest tier. If you are expecting $25 tier patronage to be more explicit than the lower tiers, I can assure you that it is not; it's pretty much the same quality/quantity as the $5 tier, at least as of the end of the November cycle. If you want to support at the $5 tier, you will be getting less content, and some, if not most, of that ends up on Instagram eventually in some form.
Going forward though, all of this may change. She has a photographer that she apparently enjoyed working with and whose work she feels is quality (as of end of Nov/beginning of Dec), and is apparently going to do monthly photoshoots with him. Whether this translates to photosets at the highest tier of patronage, or if she'll continue to carefully dole out content in smaller quantities is something I cannot speak too. She has been very careful in controlling her content, which has allowed her to create a demand for it at the higher tier (particularly since she's also limited the number of slots available at all tiers to further conflate demand because there could come a time when you can actually just not support her Patreon, because all those spots are gone, making her content even more exclusive and ellusive), but my personal belief is that it's not enough to justify that significant of an expenditure monthly.
So, it's entirely up to you. I feel that Lilly is very aware of her fanbase, and very shrewd in how she is doling out her content. The very act of making anything exclusive to the $25 tier, even if that content is no different in quality or quantity to the lower tiers, will be enough to entice people who are enamoured with her enough to support at that tier regardless. I can't help but feel a little cynical about this...my feeling is that she is aware that many of her patrons are more dedicated to her than she is to them...and that is entirely within her right, but if you're at a lower income like myself, it makes it difficult to justify supporting her, particularly since there are no garuntees towards what content you will receive every month.
I hope this helps! I am no longer a patron of hers, as I can't afford to be month to month, at least not at the highest tier, and I don't believe it is worth it at the lowest tier, so I cannot answer any questions about her current content.