Grammatical Questions

I'm practicing my English writing ability, but very often I make mistakes that I'm unaware of. Could you please point out the first five mistake here? So that I know what kinds of mistakes I make. Thank you very much.

In a half an hour’s drive, we were welcomed by a thatch-roofed teak wood house – the main building of the Balinese hotel - with six cabins on either side forming the shape of a crescent moon in the rainforest clearing in the mist. In the front of the row of buildings was a long stretch of garden with a creek going through it. Our valet helped us park our Beetle, as we trod past the wooden bridge into the foyer of the hotel. The garden was a grass with different turfs of flowers on along the creek. The couple of the first cabin on the left draping their arms casually around each other’s shoulders sitting in the swing under palm trees by the gurgling creek. They were engrossed in the snapdragons in different colors – the yellow of raising sun, blood red, gentle pink, and purple – swinging in the breeze, vying for attention, the mini carnation smiling brightly to them, and a bunch of purplish hortensia.