Illustration students from the University of Lincoln have put their graffiti skills to work to transform a city warehouse.
The students had been looking for a large space to demonstrate their graffiti skills legally and approached William Sinclair Ltd.
The company, which specialises in commercial and domestic horticultural products, agreed to let them transform the outside of its Firth Road warehouse.
The project began with the artists door-knocking local residents and asking what they would like to see in the artwork before initial sketches were drawn up.
Student Alison Rattigan, 50, said: "We have wanted a space to practice our skills for a long time.
"We asked Sinclairs if we could do anything on their property and they went away and thought about it before coming back and saying yes.
"We got ideas from local residents which was important to us and we came up with a design. We have never worked on this scale before so it was a challenge and an experience but we are delighted with how things have turned out."
While not an official university project, the students believe skills they develop during the 150ft project could help them in future studies.
"Half of us have never used spray paints before but we have been practising and the lads in the group have been giving us pointers," said Mrs Rattigan.
"It has been a really great experience and hopefully it will help in the future."
Meanwhile, Nathan Boden, 21, hopes the project will tackle the stereotypes that come with graffiti.
"The negative attitude towards graffiti is quite outdated and needs to be challenged," he said. "Hopefully what we have done here will help to do that."
William Sinclair Ltd bought £900 worth of materials for the students to use and was more than happy to provide a legal space for them to practice.
CEO PA Kelly Trown said: "When they approached us, we were happy to help them out once we had gone through the legal channels.
"They have come up with a design everyone is happy with and it has really improved the wall. The feedback has been excellent and everybody at the company is delighted with how things have turned out."
Meanwhile, community artist Rose Hunt praised the students' work.
"It's wonderful to see young artists bringing their skills to brighten up this dreary part of the canal," she said.