What I intrigue about was, the design on my mobile is beautiful. So without further a ado, I open back on my desktop and inspect what type of the font used. The answer is 'Open sans', it looks good on mobile.
Furthermore, I redrawn using Sketch to get the feel of overall look of the mobile site. It's actually responsive website.
Here is the final export. However the color looks off, maybe because of exporting to JPG.