In the July issues Leisure Painter and The Artist we invited readers to enter the fourth of six summer sketchbook challenges set by David Bellamy in Leisure Painter and Adebanji Alade in The Artist.

July's challenge in Leisure Painter was to sketch mountains with the following advice from David: 'We’re off to the mountains this month but if you don’t have any near you then moors, heathland, crags, quarries or even the city parks might well suffice, although the idea is to include some rocks or crags if possible. As usual try a number of sketches of different views, taking care to ascertain your centre of interest at an early stage and how you are going to create a sense of space, so important in a vast mountain scene. How will the foreground relate to the background to give that feeling of distance?

'Work out how you intend to impart a sense of scale to the composition: tiny figures well into the picture project a powerful sense of huge peaks. Buildings, trees, animals can also help in this way. Think about restricting your colours to give a feeling of unity, unless of course, you are working in monochrome.

'When you are not able to get outdoors you may have a rockery in the garden you can sketch. I built one in my garden, complete with waterfall and pond and love the way the light falls on the rocks, or when they are covered in frost or mosses. They change with the seasons and time of day. Maybe someone can build one for you. They can also attract small wildlife. Alternatively maybe you can get a friend to bring you some rocks, stones, sand and other bits of natural detritus for you to build a rocky scene indoors if you have the room, and think about how you can vary the lighting on the construction. Thomas Gainsborough created many models of this nature to work from indoors'.

If you are logged into PaintersOnline you can see all of the entries to this competition by clicking here. Of these entries David selected Chateau d'Oex by Susan Dalton(see below) as the winning entry.

Susan wins a Caran d’Ache sketching pack worth £50(rrp), comprising 12 water-soluble coloured pencils and a book to illustrate and four graphite pencils with sharpener from Jakar International Ltd.

For The Artist, Adebanji invited readers to sketch architecture saying: 'This time we are focusing on buildings and architecture. Whether it's a single monumental building, buildings on a street, high-rise buildings, or just a simple cottage or hut, I’m looking forward to seeing how you handle this subject matter!'

From all of the entries (which you can see by clicking here) the judges selected The East Gate Warwick (see below) by Alan Bickley as the winning entry.

Of Alan's winning sketch (see below) Adebanji said: 'I really love this sketch by Alan Bickley, it has a real bit of life to it. I love the freedom with which he makes his marks, they are fluid and at the same time they are bold.

'The manner with which he represents light in this piece is so believable and it really works with the flow of the buildings.

'He has managed to capture this scene of buildings with so much conviction and I just love that bit of colour and the overall wash that ties everything in the scene together. It’s a masterpiece!'

Alan wins a £50 gift voucher from Great Art.

Our congratulations go to both winning artists.

If you would like to take part in our remaining summer sketching challenges, please login and visit the competitions page for full details.