1. **Timeline Compression**: Merges events and characters from different ages, altering the sequence and relationships.
2. **Character Alterations**: Galadriel is depicted as a warrior, unlike her mystical portrayal; Elrond as a young diplomat rather than an experienced leader; and Celebrimbor as older and less skilled than described.
3. **Invented Characters and Plotlines**: Original characters (e.g., Halbrand, Meteor Man) and story arcs, like Galadriel’s revenge quest, diverge from the source material.
4. **Lore Deviations**: The inclusion of Hobbits (Harfoots) in the Second Age, inaccurate portrayals of Númenor’s culture and politics, and unrealistic friendships (e.g., Elrond and Durin IV) are not supported by Tolkien's texts.
5. **Visual and Stylistic Changes**: Short-haired Elves, lack of beards for female Dwarves, and diverse casting choices for Elves, Dwarves, and Hobbits deviate from traditional depictions, creating inconsistency with established lore and previous adaptations.
6. **Plot Inaccuracies**: Elements like the Elves' dependence on Mithril, Sauron’s disguise as Halbrand, and altered geography and landscapes conflict with Tolkien’s descriptions.
7. **Geopolitical Inconsistencies**: Númenor’s political structures and military power, the use of PalantÃri, and portrayal of other races (like Easterlings) do not align with Tolkien's writings.
8. **Cultural and Language Errors**: Inaccurate linguistic choices, and portrayals of Elven and Dwarven cultures, including different architecture and unrealistic naval practices.
9. **Magic and Mythology Misrepresentation**: Creative liberties with the design of the Rings of Power, depiction of Valinor, and the use of magic deviate from Tolkien’s subtler approach.