I can't say I've read any of Liam's writing and so can't attest to its quality, but I think we all know from his brief foray of novelposting here that he can bang out words at a professional rate.
I'm of the opinion that Liam's writing is rather lacking in terms of depth. From the time I spent studying him and his patterns, the conclusion I've come to is that his story is most likely going to have the framing that comes from a much older person, but writing an edgy teenager style in an attempt at mimicking the darker, better mangas out there. It's not uncommon considering he doesn't understand Japanese as a language, it's a high context language, where as languages like English and German are low context. Liam's experience with anime/manga is highly limited by the context he's able to take in via the language he speaks alone, and the restrictions of the English language. Most people in the West consume anime through subtitles or translations, and I've noticed there's a discrepancy in actually understanding what's actually being said. It's not a knock on the English language, just that there's something fundamental lost in translations.
For example, Quintin Tarantino in his Once Upon a Time in Hollywood said he thought Bruce Lee was arrogant and cocky when he said that "be like water" quote, that's why he portrayed him that way, but it's a complete disconnect since humbleness can often be mistaken as arrogance (which Frog thinks is in his case, but it's actually not) once you switch the language up.
My guess is that Liam is only portraying things on the periphery of what he thinks is like the things that inspired him and that he ripped off. It's why the design for Esper, his main character looks just like a Zoalord from Guyver. Even the design is bordering on being a derivative design despite trying not to be one.
At best, Liam's writing will come off as pretentious in the sense that he'll be writing it from the point of view that he's portraying the darkest things possible and still have meaning and hope in it, when really it might just be a half-baked idea at best.
EDIT: Also, he's using the "transforming hero" that is common in Tokusatsu shows in Japan. There's plenty of stories out there already that use that trope, so seeing what I've already seen from his pages, I can already tell he fell into some pretty bad traps, there's also this manga called Zetman that I'm instantly reminded me of already when I look at Liam's character:
I could go down a long list of what Liam possibly thought he could get away with in claiming originality when it comes to his character design choice as well as story beats from what I've gleamed from his dialogue, because I'm very familiar with that type of stuff, but it's not particularly worth it.