By far, the best way to contact me is via email.
To optimize the conversation, try and describe your project or idea, attach reference images or pictures, and mention your timeframe.
(I will always reply but I also get a lot of enquiries, so if you haven't heard from me after a few days, do not hesitate to follow up).
I'll usually get back to you within a couple of days, with either more questions, or a quote and a timeline proposal. Check out the How It Works page for even more details.