Sure we would love to help you. So for example tomorrow/today it is Wednesday. Do you have any photos that has interesting architecture or cool vehicles. If you have do then upload one (let's say of an interesting building for the architecture one) then in the title put "Daily Photograph Contest: (the name of the building in here)" and in the post section, the picture (one only) with a small description - firstly, saying you are entering the 'Wednesday Architectural Photography' contest run by @juliank and then add where the photo was taken, camera taken with and some info. Finish off with your footer, so like the photo is taken by @tgpark and this person has the copyrights to the photos. When it comes to tags, put the first tag as the main contest, so in this example 'architecturalphotography'. Secondly, add 'photography' as the next tag and the other three tags you can decide yourself.
Then in another post you can do the same, but with a photo of a vehicle (if you have one - anything, an abandoned car, a colourful bicycle or whatever you might have) and then in that one you do the same as the above, but put in 'vehiclephotography' as the main/first tag.
Then on the other days you can repeat this process by with the other categories/criterias.
You should get more views and hopefully more upvotes. Remember to advertise your post on Steem Chat in the 'postpromotion'. You should only post/advertise once every two hours to avoid spamming the chat.
Also, don't take this reply word for word as we have never entered a contest for our photos, so have a look around at those tags and see how others present their post. Wishing you the best of luck and we shall keep a close eye :)