Hey Alejandra,
first of all, thank you for the purchase!
I will answer your questions in the same order:
1). Ikebana uses the native WordPress localization functions (“_e()” and “__()”) on all strings, so there shouldn’t be any problems using multilingual plugins (e.g. Xili Language or WPML). If, however, you face any difficulties in localizing your website, please do not hesitate to contact me, I will be glad to help.
2). The setting you’re after is the “Portfolio page items: box margins” field in the “Portfolio Page” tab of the Theme Options panel ;)
3). Sorry, but this is probably not possible – the margins of the main content area are determined by jQuery scripts, which cannot safely initialize before all DOM elements on the page have been loaded (i.e. until all html on the page is already visible).
Sincerely,
Andrew / Satori Studio