I'm drawing a picture frame for a video frame

Preparation the document after the running Inkscape.

File > Document Properties... Tab the Page > Custom size > Units: px.

Tab the Page > Custom size > Tab the Grids > Creation > Axonometric grid > New.

I add layers.

I'm sending to a file SVG a video frame.

File > Import...

In window the 'Select file to import' i'm open a video frame - picture JPG made in video player MPC-HC x64.

In window the 'jpeg bitmap image import' i leave the default values.

I paste a copy in the other layer.

I delete layer with the original a video picture. I delete the empty a layer 1 also.

The size a video picture too large. I reduce the size a video picture.

Object > Transform... > Scale > Width and Height % 'Scale proportionally' on. Apply transformation to selection once or more.

I create a ellipse in other layer.

I tune and shape the ellipse in accordance with video picture.

I use 'Guideline' for comfort.

I create a bezel from the rectangles.

I'm go on experiment in Fill and Stroke > Fill: colours, Alpha opacity, Blur. Besides I'm go on experiment with Gradient, Filters, Opacity in diverse layers.

Result:

Look on the full version of the video on my youtube channel. 43 minutes 39 seconds.