Generally “творчество" means the process of creating something new/ unique or the result of such creation. If we are talking about art: - artist's paintings might be named as his/her "Творчество" . For example, " На этой выставке предствлено творчество (=работы) молодого художника" - general sphere of work . For example, "Он занимается творчеством" means that he is a kind of person whose profession is connected to art/music/etc. - process of creating and working under projects might be also called "Творчество". For example, "Голубой период в творчестве Пикассо начался в 1901 году. "

_Literally_ it is the same as "creativity". But it means something different. Creativity is the quailty/ability of a person. Творчество is understood as one of basic human needs. It is an occupation, a _process_. It is related to cretion of something new and brings about somewhat romantic/ religious associations. We rarely apply it to finding creative solutions for problems - or, if we do so we explicitly state: "it is also творчество". We would apply it to something not really romantic (like web-design) only if the artist in question feels this way him/herself. In most cases by this people mean art (any art: literature etc.) But it can be applied to anything which involves creativity: научное творчество. Sometimes it is used in way resembling a mass noun for 'products of creative work': "в творчестве Модильяни прослеживается...." - here it means both his works and his approach and can be translated with 'art of Modogliani"

It also means „creative work“ and in some contexts „art“ (like „народное творчество“ ~ „etnik sanat“).