If you are in need of reference for some models and textures for your texture work but cant find it in the usual places you look then try head over HERE for a large Reference and Concept collection and over HERE for a substantial Image and Texture resource. Use them well.
An Artstation challenge is currently under way and it is in the design stage at the moment but will then move onto the production stage shortly. There is still time to enter the design stage if your interested in that side of the art creation. For those interested in the production stage you will be able to choose one of the concepts to work from. many members of this community will be tackling this challenge, you should give it a try.
We have a large selection of tutorial links that have been carefully collected and organized by the community. If your struggling with a particular piece of software then there is a good chance we will have a link to a tutorial over on the scrap box.