How to rhyme when writing poems?

The rhyme of the first poem is in place, but I don't know if it is for rhyme, which dilutes the elegance of the poem and the expression of meaning is too simple. If we must express it so simply, we should pay more attention to the meter to make up for the deficiency of the poem itself. It's not enough to rhyme. Take your first sentence as an example. You can try not to be so colloquial when describing autumn rice. You can compare it to a golden wave, which will be more vivid and so on. There are also more colloquial sentences below, which can be changed accordingly.

The second duet is a bit scrawled. It should be a flute, not a whistle. I think it should be changed to gradually seal the heart or seal the heart more, so as not to appear abrupt. There is also the problem of leveling. The last word of each sentence is flat, unclear and does not rhyme. The last sentence is not well expressed. The wind in early spring should still be relatively cold, and it is not good to be cold. I know you wanted to express warm air, but your time is not clear, which is easy to be misunderstood.

The third song is ok, but the second half remains to be studied.

The fourth modern poem has profound meaning, but the final meaning is a bit vague, that is, the whole part of the poem is not closely related to the theme. I know that modern poetry is largely free to play and give meaning to myself, because I have written some ancient poems and modern poems myself, but I still have to show them to others in the end to see if others will understand what you want to express. Especially don't forget the origin of poetry because of its brilliance.

My humble opinion ... some places may be too heavy, please forgive me.