The rain streaks suggest you're figuring out when to stop working an area. That's half the battle with pastels, knowing when a mark is done before you smudge it into mud. Second piece and you're already letting weather happen on the page.

Oil pastel on the second try, that's ambitious. I remember my early landscape attempts where I'd smudge half the detail trying to blend sky into horizon. What helped me eventually was working faster in sections, letting areas set before coming back. You're already asking the right questions.