Create realistic line drawing of animals

For a special project, we are looking for an artist to create a bespoke line drawing of a realisic, but slightly cartoon, highland cow and a donkey together. A4 size, line drawing, ideally with colour. pencil or pen.

We will need a draft, with the possibility of changes and then a final version created in high quality Jpg format, so printing at actual or double actual size.

Both animals to be shown in full (i.e. full body visible, not just heads), facing the viewer - side-by-side.

Looking for prices and examples of work.

Timescales: Maximum 4 weeks from start to finish of the process.