Professional-looking explainer video

(Let us see I can get the message of what I need across this time...) I want to promote the website [login to view URL] through a short video that will show how it works and what it is. It will contain shots from the website operations of course, and before that an 'intro' that will explain in brief what [login to view URL] is all about. You DON'T have to animate anything. Actually the video will be _very_ similar to these training videos here: [login to view URL] So we only have to use 'static' images that will only 'move around the screen'. Of course adding some 'depth' with the use of shadows, lighting and even After Effects is highly desirable - as opposed to having these 'flat' 2D elements moving around the screen. We can even use libraries of 3D icons, like in the attached example. The last part of the video will mostly show how the subscription process works and how the games are played and users get ranked based on their scores, as if there was a screen-capturing software 'taping' some user browsing through the website and playing the games. We can even use 'snapshots' of the games - that are quite fancy and colorfull by themselves anyway - to make the presentation more attractive. A native British or American narrator will be used. I will provide the text. Regarding the budget, I cannot go too far above $400. Duration of the video: not more than 90 seconds. Actually, the shorter and more comprehensive the presentation, the better.