To be fair I can't say anything from those two links, second one looks like background with image and that's all.
If you really have knowledge in html/css, Bootstrap, php, js and etc, personally I suggest you to try your fate on themeforest and in overall on envato's websites. They are great platform to create something and sell. I think that's much more beneficial than being hired by someone for particular time.
that actually does sound like a better idea than what I've been doing this whole time on this forum. i do like the idea of passive income, and from all the YouTube videos from YouTubers I watched, selling your time is the least effective way of making money. I never thought about selling my designs, as I can make something once and sell it. Back to Angular/Photoshop videos I guess.