Practice is everything. The more you draw sketches more progress you get. When I graduated from the art academy, we went to a museum and copy famous artists to understand their lines, shapes, and composition. Later you will understand how to progress and build your style. You can find some youtube videos or courses, but I suggest the SketchAR app where you can try to draw from scratch and your artistic skills... Source: almost 3 years ago

Cubeamajig: https://cubeamajigs-series-2.backerkit.com/hosted_preorders# Burger Tokens equivalent: https://burgertokens.com/products/perfect-fit-deckboxes?variant=31359439274073 Galaxy-brain equivalent: find a box vendor. The image is from packlane.com , but that is US only. If you have a UK custom box maker then please link. Every page is b2b only and does quotes. Source: over 1 year ago

There are sites such as Packlane that offer pretty decent custom packaging with low minimums where you just have to choose a box type and dimensions and upload some artwork. Pretty good for starting out. Source: over 1 year ago

Https://www.arka.com/ usually have low MOQs for custom cartons. Another option is https://packlane.com/. Source: over 1 year ago

Packlane.com for custom boxes, or free from USPS.com. Source: about 2 years ago

I buy custom size boxes at packlane.com. Source: about 2 years ago