Hi there,
Hiding the dots with CSS shouldn’t hurt the SEO. Here is the CSS:
.entry-summary p:not(.read-more-container) {
display: none;
}
As for moving the featured image, that would require quite a bit of custom coding to make it work with the columns gap etc. If you decent with CSS and feel like tacking it, this should help to get started:
.post-image-above-header .inside-article .post-image {
margin-top: -50px;
}
Let me know if this helps ๐