Illustrations update 3 (#1908)

* Add/update art

* JS illustrations

Author: enstyled

js/frameworks.html.markerb

@@ -6,7 +6,7 @@ order: 4
 ---
 
 <figure>
-  <img src="/static/images/docs-guide.webp" srcset="/static/images/docs-guide@2x.webp 2x" alt="">
+  <img src="/static/images/js-lander.png" alt="Illustration by Annie Ruygt of two 3-eyed humanoids relaxing with a drink" class="w-full mx-auto">
 </figure>
 
 <p>Each one of the language guides will take you through creating and deploying a simple application.</p>

js/frameworks/remix.html.markerb

@@ -4,14 +4,18 @@ layout: framework_docs
 redirect_from:
  - /docs/languages-and-frameworks/remix/
  - /docs/getting-started/remix/
-objective: Remix is a full stack web framework that lets you focus on the user interface and work back through web standards to deliver a fast, slick, and resilient user experience. 
+objective: Remix is a full stack web framework that lets you focus on the user interface and work back through web standards to deliver a fast, slick, and resilient user experience.
 order: 12
 ---
 
+<figure>
+  <img src="/static/images/remix.png" alt="Illustration by Annie Ruygt of a color wave accross the sky" class="w-full mx-auto">
+</figure>
+
 <% app_name = "hello-remix" %>
 <%= partial "partials/intro", locals: { runtime: "Remix", link: "https://remix.run" } %>
 
-We'll be using the standard web application generated by [Remix](https://remix.run/). This is a bare-bones app with no database. 
+We'll be using the standard web application generated by [Remix](https://remix.run/). This is a bare-bones app with no database.
 
 ## _Deploy a Remix app_