HoMM VII Haven Units – Haven faction units from the seventh installment of Heroes of Might and Magic.

Personally, I'm not very happy with my work because the models in the sixth installment were ruined by the developers themselves.

If I wanted you to complain again about how "incompetent developers can't do anything and generally ruin the models" and that "you're smarter than them," I would have asked.

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Not at the moment.

So, is it boasting?

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No one is judging if a person does something for themselves and doesn't want to make it publicly available.

But when a person actively "shows off" the results of their actions, tries to act like a guru, and at the same time "withholds" the materials, it creates the impression that either they are boasting or trying to inflate their ego.
In any case, this is a very pathetic behavior.