These are my titles. they where made in Photopea using many different effects. But I added some final touches using Adobe Photoshop . I also used these two apps for the website headers.

The 3D look comes from two main effects, Bevel and Emboss. A bevel is a ramped edge that makes the top look like its center is higher then the edges.  emboss means to make something stand out which makes sense.

The backrounds look like they would take a long time to make but it doesn't. all you have to do is get a blank backround, select the gradient tool, and set it to difference and swipe around randomly.

The hardest part about this was having to choose the right matching colors. they have to be opposite colors for the best viewing experience.