A creek in spring
sweeping everything away,
in summer dries out.
--
Flowing slower in
fall, the winter river soon
completely stops
At first glance it looks like the writer is trying to adhere to the 5-7-5 rule of the so-called America Haiku. This is especially evident in the second section as he splits the "in fall" between two lines, whereas there is no other explanation to do so, yet S1L1 and S2L3 are both only four syllables. As it does not help what rhythmic quality there is, this can also not be the reason. So the lineation seems ad hoc. The title "Leviathan" does not seem to really work with "creek", Leviathan would be overpowering, a word that creek does not connote. River would be a more functional word.
Except for S1L2 nothing else in the poem speaks to Leviathan. In general the rest of the poem speak of mildness and rhythmically is of low energy, also not what one would expect from the title.
On the whole, disregarding the title the descriptions are weak and generally uninteresting.
Another point, it feels as though the poem was forced to follow the cyclic nature of nature; certainly an oft used theme. This poem does not seem to bring anything new or fresh to this ground.
I have often written similar poems myself and they could easily be judged just as harshly as this critique does. I don't know what this writers reasons were, but mine are usually that I think I have more of an idea than I actually do. It is very frustrating to say the least. I am always left wondering did I not really have an idea, or did it somehow just slip away from me.
Best,
dale