This article involves an empirical linguistic study aimed at elucidating the use of metonymy and metaphor in descriptive essays written by a group of intermediate EFL students (further referred to as ‘participants’). 20 participants were recruited at Stockholm University, Sweden and matched with a control group comprised of 20 advanced EFL students at the same university. The participants and their respective controls were given five pictorial stimuli containing famous architectural landmarks in Sweden. The participants and the control group were instructed to write a one paragraph descriptive essay about each pictorial stimulus using either i) an imaginary and creative approach or ii) a non-imaginary and purely descriptive approach. The corpus of the participants’ and controls’ essays was subsequently analysed in the computer program WordSmith (Scott, 1996). Quantitative analysis in WordSmith yielded descriptive statistics involving word frequencies. Then, the corpus was analysed manually for the presence of metonymy and metaphor. Qualitative findings seem to support previous research (MacArthur, 2010; Haghshenas & Hashemian, 2016), which suggests that the use of metonymy tends to be associated with the intermediate level of EFL writing, whilst both metonymy and metaphor are predominantly found in the writing by advanced EFL learners.